diff --git a/app/test_helpers.go b/app/test_helpers.go
index 3676eafaab..b2539ab9f3 100644
--- a/app/test_helpers.go
+++ b/app/test_helpers.go
@@ -266,9 +266,11 @@ func IntegrationTestNetworkConfig() network.Config {
 	// execute ballot voting and thus clear out previous exchange rates, since we
 	// are not running a price-feeder.
 	oracleGenState.Params.VotePeriod = 1000
-	oracleGenState.ExchangeRates = append(oracleGenState.ExchangeRates, oracletypes.NewExchangeRateTuple(
-		params.DisplayDenom, sdk.MustNewDecFromStr("34.21"),
-	))
+	oracleGenState.ExchangeRates = append(oracleGenState.ExchangeRates, oracletypes.ExchangeRate{
+		Denom:     params.DisplayDenom,
+		Rate:      sdk.MustNewDecFromStr("34.21"),
+		Timestamp: time.Now(),
+	})
 	// Set mock historic medians to satisfy leverage module's 24 median requirement
 	for i := 1; i <= 24; i++ {
 		median := oracletypes.Price{
diff --git a/proto/umee/oracle/v1/genesis.proto b/proto/umee/oracle/v1/genesis.proto
index 57e1c76f55..4643e25fc9 100644
--- a/proto/umee/oracle/v1/genesis.proto
+++ b/proto/umee/oracle/v1/genesis.proto
@@ -10,22 +10,15 @@ option (gogoproto.goproto_getters_all) = false;
 
 // GenesisState defines the oracle module's genesis state.
 message GenesisState {
-  Params                    params             = 1 [(gogoproto.nullable) = false];
-  repeated FeederDelegation feeder_delegations = 2
-      [(gogoproto.nullable) = false];
-  // TODO: need to update this to save data with timestamp
-  repeated ExchangeRateTuple exchange_rates = 3 [
-    (gogoproto.castrepeated) = "ExchangeRateTuples",
-    (gogoproto.nullable)     = false
-  ];
+  Params                                params                           = 1 [(gogoproto.nullable) = false];
+  repeated FeederDelegation             feeder_delegations               = 2 [(gogoproto.nullable) = false];
+  repeated ExchangeRate                 exchange_rates                   = 3 [(gogoproto.nullable) = false];
   repeated MissCounter                  miss_counters                    = 4 [(gogoproto.nullable) = false];
-  repeated AggregateExchangeRatePrevote aggregate_exchange_rate_prevotes = 5
-      [(gogoproto.nullable) = false];
-  repeated AggregateExchangeRateVote aggregate_exchange_rate_votes = 6
-      [(gogoproto.nullable) = false];
-  repeated Price medians          = 7 [(gogoproto.nullable) = false];
-  repeated Price historic_prices  = 8 [(gogoproto.nullable) = false];
-  repeated Price medianDeviations = 9 [(gogoproto.nullable) = false];
+  repeated AggregateExchangeRatePrevote aggregate_exchange_rate_prevotes = 5 [(gogoproto.nullable) = false];
+  repeated AggregateExchangeRateVote    aggregate_exchange_rate_votes    = 6 [(gogoproto.nullable) = false];
+  repeated Price                        medians                          = 7 [(gogoproto.nullable) = false];
+  repeated Price                        historic_prices                  = 8 [(gogoproto.nullable) = false];
+  repeated Price                        medianDeviations                 = 9 [(gogoproto.nullable) = false];
   // Historic Avg Counter params
   AvgCounterParams avg_counter_params = 10 [
     (gogoproto.moretags) = "yaml:\"avg_counter_params\"",
diff --git a/proto/umee/oracle/v1/oracle.proto b/proto/umee/oracle/v1/oracle.proto
index 8cecd4a33b..c1dfca0352 100644
--- a/proto/umee/oracle/v1/oracle.proto
+++ b/proto/umee/oracle/v1/oracle.proto
@@ -149,8 +149,8 @@ message AvgCounter {
 message ExchangeRate {
   option (gogoproto.equal)            = false;
   option (gogoproto.goproto_stringer) = false;
-
-  string rate = 1 [
+  string denom                        = 1 [(gogoproto.moretags) = "yaml:\"denom\""];
+  string rate                         = 2 [
     (gogoproto.customtype) = "github.com/cosmos/cosmos-sdk/types.Dec",
     (gogoproto.nullable)   = false
   ];
diff --git a/x/leverage/simulation/operations_test.go b/x/leverage/simulation/operations_test.go
index 51990e4931..d868a2ec1c 100644
--- a/x/leverage/simulation/operations_test.go
+++ b/x/leverage/simulation/operations_test.go
@@ -38,7 +38,7 @@ func (s *SimTestSuite) SetupTest() {
 
 	// Use default umee token for sim tests
 	s.Require().NoError(app.LeverageKeeper.SetTokenSettings(ctx, fixtures.Token("uumee", "UMEE", 6)))
-	app.OracleKeeper.SetExchangeRate(ctx, "UMEE", sdk.MustNewDecFromStr("100.0"))
+	app.OracleKeeper.SetExchangeRate(ctx, "UMEE", sdk.MustNewDecFromStr("100.0"), s.ctx.BlockTime())
 	for i := 1; i <= 24; i++ {
 		// set historic medians for UMEE on blocks 1-24 (without actually advancing block height)
 		// this is to accommodate leverage module's default 24 historic median requirement
diff --git a/x/oracle/abci.go b/x/oracle/abci.go
index 28f9d73461..4dd8294712 100644
--- a/x/oracle/abci.go
+++ b/x/oracle/abci.go
@@ -77,7 +77,8 @@ func CalcPrices(ctx sdk.Context, params types.Params, k keeper.Keeper) error {
 		if err != nil {
 			return err
 		}
-		k.SetExchangeRateWithEvent(ctx, denom, exchangeRate)
+		// save the exchange rate to store with denom and timestamp
+		k.SetExchangeRateWithEvent(ctx, denom, exchangeRate, ctx.BlockTime())
 
 		if k.IsPeriodLastBlock(ctx, params.HistoricStampPeriod) {
 			k.AddHistoricPrice(ctx, denom, exchangeRate)
diff --git a/x/oracle/abci_test.go b/x/oracle/abci_test.go
index 6b57cb318c..385565ca07 100644
--- a/x/oracle/abci_test.go
+++ b/x/oracle/abci_test.go
@@ -156,7 +156,10 @@ func (s *IntegrationTestSuite) TestEndBlockerVoteThreshold() {
 	for _, denom := range app.OracleKeeper.AcceptList(ctx) {
 		rate, err := app.OracleKeeper.GetExchangeRate(ctx, denom.SymbolDenom)
 		s.Require().NoError(err)
-		s.Require().Equal(types.ExchangeRate{Rate: sdk.OneDec(), Timestamp: ctx.BlockTime()},
+		s.Require().Equal(types.ExchangeRate{
+			Rate:      sdk.OneDec(),
+			Denom:     denom.SymbolDenom,
+			Timestamp: ctx.BlockTime()},
 			rate)
 	}
 
@@ -199,7 +202,8 @@ func (s *IntegrationTestSuite) TestEndBlockerVoteThreshold() {
 	for _, denom := range app.OracleKeeper.AcceptList(ctx) {
 		rate, err := app.OracleKeeper.GetExchangeRate(ctx, denom.SymbolDenom)
 		s.Require().NoError(err)
-		s.Require().Equal(types.ExchangeRate{Rate: sdk.NewDecWithPrec(5, 1), Timestamp: ctx.BlockTime()}, rate)
+		s.Require().Equal(types.ExchangeRate{
+			Denom: denom.SymbolDenom, Rate: sdk.NewDecWithPrec(5, 1), Timestamp: ctx.BlockTime()}, rate)
 	}
 
 	// TODO: check reward distribution
@@ -236,9 +240,9 @@ func (s *IntegrationTestSuite) TestEndBlockerVoteThreshold() {
 
 	rate, err := app.OracleKeeper.GetExchangeRate(ctx, "umee")
 	s.Require().NoError(err)
-	s.Require().Equal(types.ExchangeRate{Rate: sdk.OneDec(), Timestamp: ctx.BlockTime()}, rate)
-	rate, err = app.OracleKeeper.GetExchangeRate(ctx, "atom")
-	s.Require().ErrorIs(err, types.ErrUnknownDenom.Wrap("atom"))
+	s.Require().Equal(types.ExchangeRate{Denom: "UMEE", Rate: sdk.OneDec(), Timestamp: ctx.BlockTime()}, rate)
+	rate, err = app.OracleKeeper.GetExchangeRate(ctx, "ATOM")
+	s.Require().ErrorIs(err, types.ErrUnknownDenom.Wrap("ATOM"))
 	s.Require().Equal(types.ExchangeRate{}, rate)
 }
 
diff --git a/x/oracle/genesis.go b/x/oracle/genesis.go
index f979ea2238..8d8114893e 100644
--- a/x/oracle/genesis.go
+++ b/x/oracle/genesis.go
@@ -23,7 +23,7 @@ func InitGenesis(ctx sdk.Context, keeper keeper.Keeper, genState types.GenesisSt
 	}
 
 	for _, ex := range genState.ExchangeRates {
-		keeper.SetExchangeRate(ctx, ex.Denom, ex.ExchangeRate)
+		keeper.SetExchangeRate(ctx, ex.Denom, ex.Rate, ex.Timestamp)
 	}
 
 	for _, mc := range genState.MissCounters {
@@ -91,13 +91,9 @@ func ExportGenesis(ctx sdk.Context, keeper keeper.Keeper) *types.GenesisState {
 		return false
 	})
 
-	exchangeRates := []types.ExchangeRateTuple{}
-	keeper.IterateExchangeRates(ctx, func(denom string, rate sdk.Dec) (stop bool) {
-		exchangeRates = append(exchangeRates, types.ExchangeRateTuple{
-			Denom:        denom,
-			ExchangeRate: rate,
-		})
-
+	exchangeRates := []types.ExchangeRate{}
+	keeper.IterateExchangeRates(ctx, func(er types.ExchangeRate) (stop bool) {
+		exchangeRates = append(exchangeRates, er)
 		return false
 	})
 
diff --git a/x/oracle/genesis_test.go b/x/oracle/genesis_test.go
index 5ba2e03352..e7ed120900 100644
--- a/x/oracle/genesis_test.go
+++ b/x/oracle/genesis_test.go
@@ -54,10 +54,11 @@ func (s *IntegrationTestSuite) TestGenesis_InitGenesis() {
 			"valid",
 			types.GenesisState{
 				Params: types.DefaultParams(),
-				ExchangeRates: types.ExchangeRateTuples{
-					types.ExchangeRateTuple{
-						Denom:        denom,
-						ExchangeRate: exchangeRate,
+				ExchangeRates: []types.ExchangeRate{
+					{
+						Denom:     denom,
+						Rate:      exchangeRate,
+						Timestamp: ctx.BlockTime(),
 					},
 				},
 				HistoricPrices: types.Prices{
@@ -152,10 +153,11 @@ func (s *IntegrationTestSuite) TestGenesis_ExportGenesis() {
 			ValidatorAddress: umeevaloperAddr,
 		},
 	}
-	exchangeRateTuples := types.ExchangeRateTuples{
-		types.ExchangeRateTuple{
-			Denom:        upperDenom,
-			ExchangeRate: exchangeRate,
+	exchangeRateTuples := []types.ExchangeRate{
+		{
+			Denom:     upperDenom,
+			Rate:      exchangeRate,
+			Timestamp: ctx.BlockTime(),
 		},
 	}
 	missCounters := []types.MissCounter{
diff --git a/x/oracle/keeper/ballot_test.go b/x/oracle/keeper/ballot_test.go
index cc6ff3fc98..e952d4a2d7 100644
--- a/x/oracle/keeper/ballot_test.go
+++ b/x/oracle/keeper/ballot_test.go
@@ -8,7 +8,7 @@ import (
 
 func (s *IntegrationTestSuite) TestBallot_OrganizeBallotByDenom() {
 	require := s.Require()
-	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, sdk.OneDec())
+	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, sdk.OneDec(), s.ctx.BlockTime())
 	claimMap := make(map[string]types.Claim)
 
 	// Empty Map
diff --git a/x/oracle/keeper/grpc_query.go b/x/oracle/keeper/grpc_query.go
index 7d297ae7c7..635e5cc4ce 100644
--- a/x/oracle/keeper/grpc_query.go
+++ b/x/oracle/keeper/grpc_query.go
@@ -64,8 +64,8 @@ func (q querier) ExchangeRates(
 
 		exchangeRates = exchangeRates.Add(sdk.NewDecCoinFromDec(req.Denom, exchangeRate.Rate))
 	} else {
-		q.IterateExchangeRates(ctx, func(denom string, rate sdk.Dec) (stop bool) {
-			exchangeRates = exchangeRates.Add(sdk.NewDecCoinFromDec(denom, rate))
+		q.IterateExchangeRates(ctx, func(exgRate types.ExchangeRate) (stop bool) {
+			exchangeRates = exchangeRates.Add(sdk.NewDecCoinFromDec(exgRate.Denom, exgRate.Rate))
 			return false
 		})
 	}
@@ -85,8 +85,8 @@ func (q querier) ActiveExchangeRates(
 	ctx := sdk.UnwrapSDKContext(goCtx)
 
 	denoms := []string{}
-	q.IterateExchangeRates(ctx, func(denom string, _ sdk.Dec) (stop bool) {
-		denoms = append(denoms, denom)
+	q.IterateExchangeRates(ctx, func(exgRate types.ExchangeRate) (stop bool) {
+		denoms = append(denoms, exgRate.Denom)
 		return false
 	})
 
diff --git a/x/oracle/keeper/grpc_query_test.go b/x/oracle/keeper/grpc_query_test.go
index 9f6bc75bd5..7c33a96563 100644
--- a/x/oracle/keeper/grpc_query_test.go
+++ b/x/oracle/keeper/grpc_query_test.go
@@ -12,14 +12,14 @@ import (
 )
 
 func (s *IntegrationTestSuite) TestQuerier_ActiveExchangeRates() {
-	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, sdk.OneDec())
+	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, sdk.OneDec(), s.ctx.BlockTime())
 	res, err := s.queryClient.ActiveExchangeRates(s.ctx.Context(), &types.QueryActiveExchangeRates{})
 	s.Require().NoError(err)
 	s.Require().Equal([]string{displayDenom}, res.ActiveRates)
 }
 
 func (s *IntegrationTestSuite) TestQuerier_ExchangeRates() {
-	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, sdk.OneDec())
+	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, sdk.OneDec(), s.ctx.BlockTime())
 	res, err := s.queryClient.ExchangeRates(s.ctx.Context(), &types.QueryExchangeRates{})
 	s.Require().NoError(err)
 	s.Require().Equal(sdk.DecCoins{
@@ -193,8 +193,13 @@ func (s *IntegrationTestSuite) TestQuerier_AggregatePrevotesAppendVotes() {
 }
 
 func (s *IntegrationTestSuite) TestQuerier_AggregateVotesAppendVotes() {
+	exgRateTuples := types.ExchangeRateTuples{}
+
+	for _, er := range types.DefaultGenesisState().ExchangeRates {
+		exgRateTuples = append(exgRateTuples, types.ExchangeRateTuple{Denom: er.Denom, ExchangeRate: er.Rate})
+	}
 	s.app.OracleKeeper.SetAggregateExchangeRateVote(s.ctx, valAddr, types.NewAggregateExchangeRateVote(
-		types.DefaultGenesisState().ExchangeRates,
+		exgRateTuples,
 		valAddr,
 	))
 
diff --git a/x/oracle/keeper/keeper.go b/x/oracle/keeper/keeper.go
index 35ccd7e1eb..6f350a4c8e 100644
--- a/x/oracle/keeper/keeper.go
+++ b/x/oracle/keeper/keeper.go
@@ -2,6 +2,7 @@ package keeper
 
 import (
 	"fmt"
+	"time"
 
 	"github.com/cosmos/cosmos-sdk/codec"
 	storetypes "github.com/cosmos/cosmos-sdk/store/types"
@@ -111,38 +112,35 @@ func (k Keeper) GetExchangeRateBase(ctx sdk.Context, denom string) (sdk.Dec, err
 }
 
 // SetExchangeRate sets the consensus exchange rate of USD denominated in the
-// denom asset to the store.
-func (k Keeper) SetExchangeRate(ctx sdk.Context, denom string, rate sdk.Dec) {
+// denom asset to the store with timestamp
+func (k Keeper) SetExchangeRate(ctx sdk.Context, denom string, rate sdk.Dec, t time.Time) {
 	key := types.KeyExchangeRate(denom)
-	val := types.ExchangeRate{Rate: rate, Timestamp: ctx.BlockTime()}
-	err := store.SetValue(ctx.KVStore(k.storeKey), key, &val, "exchange_rate")
+	val := types.ExchangeRate{Denom: denom, Rate: rate, Timestamp: t}
+	err := store.SetValue[*types.ExchangeRate](ctx.KVStore(k.storeKey), key, &val, "exchange_rate")
 	util.Panic(err)
 }
 
 // SetExchangeRateWithEvent sets an consensus
 // exchange rate to the store with ABCI event
-func (k Keeper) SetExchangeRateWithEvent(ctx sdk.Context, denom string, exchangeRate sdk.Dec) {
-	k.SetExchangeRate(ctx, denom, exchangeRate)
+func (k Keeper) SetExchangeRateWithEvent(ctx sdk.Context, denom string, rate sdk.Dec, t time.Time) {
+	k.SetExchangeRate(ctx, denom, rate, t)
 	sdkutil.Emit(&ctx, &types.EventSetFxRate{
-		Denom: denom, Rate: exchangeRate,
+		Denom: denom, Rate: rate,
 	})
 }
 
 // IterateExchangeRates iterates over all USD rates in the store.
 // TODO: handler should use ExchangeRate type rather than Dec
-func (k Keeper) IterateExchangeRates(ctx sdk.Context, handler func(string, sdk.Dec) bool) {
+func (k Keeper) IterateExchangeRates(ctx sdk.Context, handler func(types.ExchangeRate) bool) {
 	store := ctx.KVStore(k.storeKey)
 	iter := sdk.KVStorePrefixIterator(store, types.KeyPrefixExchangeRate)
 	defer iter.Close()
-	prefixLen := len(types.KeyPrefixExchangeRate)
 
 	for ; iter.Valid(); iter.Next() {
-		key := iter.Key()
-		denom := string(key[prefixLen : len(key)-1]) // -1 to remove the null suffix
 		var er types.ExchangeRate
 		k.cdc.MustUnmarshal(iter.Value(), &er)
 
-		if handler(denom, er.Rate) {
+		if handler(er) {
 			break
 		}
 	}
diff --git a/x/oracle/keeper/keeper_test.go b/x/oracle/keeper/keeper_test.go
index 2d2d8d56d9..83682b0a2a 100644
--- a/x/oracle/keeper/keeper_test.go
+++ b/x/oracle/keeper/keeper_test.go
@@ -206,10 +206,10 @@ func (s *IntegrationTestSuite) TestAggregateExchangeRateVoteError() {
 
 func (s *IntegrationTestSuite) TestSetExchangeRateWithEvent() {
 	v := sdk.OneDec()
-	s.app.OracleKeeper.SetExchangeRateWithEvent(s.ctx, displayDenom, v)
+	s.app.OracleKeeper.SetExchangeRateWithEvent(s.ctx, displayDenom, v, s.ctx.BlockTime())
 	rate, err := s.app.OracleKeeper.GetExchangeRate(s.ctx, displayDenom)
 	s.Require().NoError(err)
-	s.Require().Equal(rate, types.ExchangeRate{Rate: v, Timestamp: s.ctx.BlockTime()})
+	s.Require().Equal(rate, types.ExchangeRate{Rate: v, Timestamp: s.ctx.BlockTime(), Denom: displayDenom})
 }
 
 func (s *IntegrationTestSuite) TestGetExchangeRate_InvalidDenom() {
@@ -228,13 +228,13 @@ func (s *IntegrationTestSuite) TestGetExchangeRate_NotSet() {
 
 func (s *IntegrationTestSuite) TestGetExchangeRate_Valid() {
 	v := sdk.OneDec()
-	expected := types.ExchangeRate{Rate: v, Timestamp: s.ctx.BlockTime()}
-	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, v)
+	expected := types.ExchangeRate{Rate: v, Timestamp: s.ctx.BlockTime(), Denom: displayDenom}
+	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, v, s.ctx.BlockTime())
 	rate, err := s.app.OracleKeeper.GetExchangeRate(s.ctx, displayDenom)
 	s.Require().NoError(err)
 	s.Require().Equal(rate, expected)
 
-	s.app.OracleKeeper.SetExchangeRate(s.ctx, strings.ToLower(displayDenom), sdk.OneDec())
+	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, sdk.OneDec(), s.ctx.BlockTime())
 	rate, err = s.app.OracleKeeper.GetExchangeRate(s.ctx, displayDenom)
 	s.Require().NoError(err)
 	s.Require().Equal(rate, expected)
@@ -252,12 +252,12 @@ func (s *IntegrationTestSuite) TestGetExchangeRateBase() {
 
 	power := sdk.MustNewDecFromStr("10").Power(exponent)
 
-	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, sdk.OneDec())
+	s.app.OracleKeeper.SetExchangeRate(s.ctx, displayDenom, sdk.OneDec(), s.ctx.BlockTime())
 	rate, err := s.app.OracleKeeper.GetExchangeRateBase(s.ctx, bondDenom)
 	s.Require().NoError(err)
 	s.Require().Equal(rate.Mul(power), sdk.OneDec())
 
-	s.app.OracleKeeper.SetExchangeRate(s.ctx, strings.ToLower(displayDenom), sdk.OneDec())
+	s.app.OracleKeeper.SetExchangeRate(s.ctx, strings.ToLower(displayDenom), sdk.OneDec(), s.ctx.BlockTime())
 	rate, err = s.app.OracleKeeper.GetExchangeRateBase(s.ctx, bondDenom)
 	s.Require().NoError(err)
 	s.Require().Equal(rate.Mul(power), sdk.OneDec())
@@ -266,7 +266,7 @@ func (s *IntegrationTestSuite) TestGetExchangeRateBase() {
 func (s *IntegrationTestSuite) TestClearExchangeRate() {
 	app, ctx := s.app, s.ctx
 
-	app.OracleKeeper.SetExchangeRate(ctx, displayDenom, sdk.OneDec())
+	app.OracleKeeper.SetExchangeRate(ctx, displayDenom, sdk.OneDec(), s.ctx.BlockTime())
 	app.OracleKeeper.ClearExchangeRates(ctx)
 	_, err := app.OracleKeeper.GetExchangeRate(ctx, displayDenom)
 	s.Require().Error(err)
diff --git a/x/oracle/keeper/msg_server_test.go b/x/oracle/keeper/msg_server_test.go
index e0fbec1f80..636c9d6b2e 100644
--- a/x/oracle/keeper/msg_server_test.go
+++ b/x/oracle/keeper/msg_server_test.go
@@ -98,7 +98,7 @@ func (s *IntegrationTestSuite) TestMsgServer_AggregateExchangeRateVote() {
 	acceptList := s.app.OracleKeeper.GetParams(ctx).AcceptList
 	var acceptListFlat []string
 	for _, v := range acceptList {
-		acceptListFlat = append(acceptListFlat, v.SymbolDenom)
+		acceptListFlat = append(acceptListFlat, strings.ToUpper(v.SymbolDenom))
 	}
 
 	// No existing prevote
@@ -122,7 +122,7 @@ func (s *IntegrationTestSuite) TestMsgServer_AggregateExchangeRateVote() {
 	vote, err := s.app.OracleKeeper.GetAggregateExchangeRateVote(ctx, valAddr)
 	s.Require().Nil(err)
 	for _, v := range vote.ExchangeRateTuples {
-		s.Require().Contains(acceptListFlat, strings.ToLower(v.Denom))
+		s.Require().Contains(acceptListFlat, v.Denom)
 	}
 
 	// Valid, but with an exchange rate which isn't in AcceptList
@@ -132,12 +132,13 @@ func (s *IntegrationTestSuite) TestMsgServer_AggregateExchangeRateVote() {
 		types.NewAggregateExchangeRatePrevote(
 			hashInvalidRate, valAddr, 1,
 		))
+
 	_, err = s.msgServer.AggregateExchangeRateVote(sdk.WrapSDKContext(ctx), voteMsgInvalidRate)
 	s.Require().NoError(err)
 	vote, err = s.app.OracleKeeper.GetAggregateExchangeRateVote(ctx, valAddr)
 	s.Require().NoError(err)
 	for _, v := range vote.ExchangeRateTuples {
-		s.Require().Contains(acceptListFlat, strings.ToLower(v.Denom))
+		s.Require().Contains(acceptListFlat, v.Denom)
 	}
 }
 
diff --git a/x/oracle/types/asset.go b/x/oracle/types/asset.go
index 7ef07be2aa..49d99aa42a 100644
--- a/x/oracle/types/asset.go
+++ b/x/oracle/types/asset.go
@@ -7,17 +7,17 @@ import (
 )
 
 const (
-	UmeeDenom       string = appparams.BondDenom
-	UmeeSymbol      string = "umee"
-	UmeeExponent           = uint32(6)
-	USDDenom        string = "USD"
-	BlocksPerMinute        = uint64(10)
-	BlocksPerHour          = BlocksPerMinute * 60
-	BlocksPerDay           = BlocksPerHour * 24
-	BlocksPerWeek          = BlocksPerDay * 7
-	BlocksPerMonth         = BlocksPerDay * 30
-	BlocksPerYear          = BlocksPerDay * 365
-	MicroUnit              = int64(1e6)
+	UmeeDenom       = appparams.BondDenom
+	UmeeSymbol      = "UMEE"
+	UmeeExponent    = uint32(6)
+	USDDenom        = "USD"
+	BlocksPerMinute = uint64(10)
+	BlocksPerHour   = BlocksPerMinute * 60
+	BlocksPerDay    = BlocksPerHour * 24
+	BlocksPerWeek   = BlocksPerDay * 7
+	BlocksPerMonth  = BlocksPerDay * 30
+	BlocksPerYear   = BlocksPerDay * 365
+	MicroUnit       = int64(1e6)
 )
 
 type (
diff --git a/x/oracle/types/denom_test.go b/x/oracle/types/denom_test.go
index 9dc49894c9..9c566beb94 100644
--- a/x/oracle/types/denom_test.go
+++ b/x/oracle/types/denom_test.go
@@ -14,7 +14,7 @@ func TestDenomString(t *testing.T) {
 	}{
 		{
 			denom:       types.DenomUmee,
-			expectedStr: "base_denom: uumee\nsymbol_denom: umee\nexponent: 6\n",
+			expectedStr: "base_denom: uumee\nsymbol_denom: UMEE\nexponent: 6\n",
 		},
 		{
 			denom:       types.DenomLuna,
@@ -76,7 +76,7 @@ func TestDenomListString(t *testing.T) {
 	}{
 		{
 			denomList:   types.DenomList{types.DenomUmee},
-			expectedStr: "base_denom: uumee\nsymbol_denom: umee\nexponent: 6",
+			expectedStr: "base_denom: uumee\nsymbol_denom: UMEE\nexponent: 6",
 		},
 		{
 			denomList:   types.DenomList{types.DenomAtom, types.DenomLuna},
diff --git a/x/oracle/types/genesis.go b/x/oracle/types/genesis.go
index 946a0fb220..d9c3bc0180 100644
--- a/x/oracle/types/genesis.go
+++ b/x/oracle/types/genesis.go
@@ -10,7 +10,7 @@ import (
 // NewGenesisState creates a new GenesisState object
 func NewGenesisState(
 	params Params,
-	rates []ExchangeRateTuple,
+	rates []ExchangeRate,
 	feederDelegations []FeederDelegation,
 	missCounters []MissCounter,
 	aggregateExchangeRatePrevotes []AggregateExchangeRatePrevote,
@@ -39,7 +39,7 @@ func NewGenesisState(
 func DefaultGenesisState() *GenesisState {
 	return &GenesisState{
 		Params:                        DefaultParams(),
-		ExchangeRates:                 []ExchangeRateTuple{},
+		ExchangeRates:                 []ExchangeRate{},
 		FeederDelegations:             []FeederDelegation{},
 		MissCounters:                  []MissCounter{},
 		AggregateExchangeRatePrevotes: []AggregateExchangeRatePrevote{},
diff --git a/x/oracle/types/genesis.pb.go b/x/oracle/types/genesis.pb.go
index b4862a32bf..1bb5da2b07 100644
--- a/x/oracle/types/genesis.pb.go
+++ b/x/oracle/types/genesis.pb.go
@@ -25,10 +25,9 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
 
 // GenesisState defines the oracle module's genesis state.
 type GenesisState struct {
-	Params            Params             `protobuf:"bytes,1,opt,name=params,proto3" json:"params"`
-	FeederDelegations []FeederDelegation `protobuf:"bytes,2,rep,name=feeder_delegations,json=feederDelegations,proto3" json:"feeder_delegations"`
-	// TODO: need to update this to save data with timestamp
-	ExchangeRates                 ExchangeRateTuples             `protobuf:"bytes,3,rep,name=exchange_rates,json=exchangeRates,proto3,castrepeated=ExchangeRateTuples" json:"exchange_rates"`
+	Params                        Params                         `protobuf:"bytes,1,opt,name=params,proto3" json:"params"`
+	FeederDelegations             []FeederDelegation             `protobuf:"bytes,2,rep,name=feeder_delegations,json=feederDelegations,proto3" json:"feeder_delegations"`
+	ExchangeRates                 []ExchangeRate                 `protobuf:"bytes,3,rep,name=exchange_rates,json=exchangeRates,proto3" json:"exchange_rates"`
 	MissCounters                  []MissCounter                  `protobuf:"bytes,4,rep,name=miss_counters,json=missCounters,proto3" json:"miss_counters"`
 	AggregateExchangeRatePrevotes []AggregateExchangeRatePrevote `protobuf:"bytes,5,rep,name=aggregate_exchange_rate_prevotes,json=aggregateExchangeRatePrevotes,proto3" json:"aggregate_exchange_rate_prevotes"`
 	AggregateExchangeRateVotes    []AggregateExchangeRateVote    `protobuf:"bytes,6,rep,name=aggregate_exchange_rate_votes,json=aggregateExchangeRateVotes,proto3" json:"aggregate_exchange_rate_votes"`
@@ -202,46 +201,46 @@ func init() {
 func init() { proto.RegisterFile("umee/oracle/v1/genesis.proto", fileDescriptor_c99b4af40468acc1) }
 
 var fileDescriptor_c99b4af40468acc1 = []byte{
-	// 620 bytes of a gzipped FileDescriptorProto
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-	0x00, 0x00, 0xff, 0xff, 0x72, 0xa7, 0x58, 0xb8, 0x73, 0x05, 0x00, 0x00,
+	// 611 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x94, 0x5d, 0x4f, 0xd4, 0x4e,
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+	0x39, 0x37, 0xb4, 0x5f, 0xe7, 0x86, 0xf6, 0xb3, 0x6b, 0xd4, 0x4e, 0xba, 0x46, 0xed, 0xb4, 0x6b,
+	0xd4, 0x3e, 0x5b, 0x7e, 0x20, 0xf6, 0xd3, 0x5d, 0xcb, 0xa5, 0x91, 0x9d, 0x2f, 0xf0, 0x28, 0x06,
+	0xf1, 0x8d, 0xb2, 0x03, 0xf9, 0x8f, 0x9d, 0x3d, 0xb3, 0x0f, 0xcb, 0x87, 0x4f, 0x1c, 0x25, 0xc0,
+	0x77, 0xeb, 0xf2, 0xd5, 0x7b, 0xfc, 0x37, 0x00, 0x00, 0xff, 0xff, 0x0e, 0x0f, 0xe5, 0xce, 0x58,
+	0x05, 0x00, 0x00,
 }
 
 func (m *GenesisState) Marshal() (dAtA []byte, err error) {
@@ -759,7 +758,7 @@ func (m *GenesisState) Unmarshal(dAtA []byte) error {
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.ExchangeRates = append(m.ExchangeRates, ExchangeRateTuple{})
+			m.ExchangeRates = append(m.ExchangeRates, ExchangeRate{})
 			if err := m.ExchangeRates[len(m.ExchangeRates)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
 				return err
 			}
diff --git a/x/oracle/types/genesis_test.go b/x/oracle/types/genesis_test.go
index 9067fbcce2..ce96d7fac5 100644
--- a/x/oracle/types/genesis_test.go
+++ b/x/oracle/types/genesis_test.go
@@ -62,7 +62,7 @@ func TestGenesisValidation(t *testing.T) {
 func TestGetGenesisStateFromAppState(t *testing.T) {
 	emptyGenesis := GenesisState{
 		Params:                        Params{},
-		ExchangeRates:                 []ExchangeRateTuple{},
+		ExchangeRates:                 []ExchangeRate{},
 		FeederDelegations:             []FeederDelegation{},
 		MissCounters:                  []MissCounter{},
 		AggregateExchangeRatePrevotes: []AggregateExchangeRatePrevote{},
diff --git a/x/oracle/types/oracle.pb.go b/x/oracle/types/oracle.pb.go
index 4d51ad8e5b..527149b73c 100644
--- a/x/oracle/types/oracle.pb.go
+++ b/x/oracle/types/oracle.pb.go
@@ -332,7 +332,8 @@ var xxx_messageInfo_AvgCounter proto.InternalMessageInfo
 
 // ExchangeRate stores exchange rate with timestamp
 type ExchangeRate struct {
-	Rate      github_com_cosmos_cosmos_sdk_types.Dec `protobuf:"bytes,1,opt,name=rate,proto3,customtype=github.com/cosmos/cosmos-sdk/types.Dec" json:"rate"`
+	Denom     string                                 `protobuf:"bytes,1,opt,name=denom,proto3" json:"denom,omitempty" yaml:"denom"`
+	Rate      github_com_cosmos_cosmos_sdk_types.Dec `protobuf:"bytes,2,opt,name=rate,proto3,customtype=github.com/cosmos/cosmos-sdk/types.Dec" json:"rate"`
 	Timestamp time.Time                              `protobuf:"bytes,3,opt,name=timestamp,proto3,stdtime" json:"timestamp"`
 }
 
@@ -382,75 +383,75 @@ func init() {
 func init() { proto.RegisterFile("umee/oracle/v1/oracle.proto", fileDescriptor_8893c9e0e94ceb54) }
 
 var fileDescriptor_8893c9e0e94ceb54 = []byte{
-	// 1074 bytes of a gzipped FileDescriptorProto
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-	0x5c, 0x56, 0xe3, 0xdd, 0xc9, 0x7a, 0x14, 0xef, 0x8e, 0x35, 0x33, 0xeb, 0x24, 0x17, 0xce, 0x9c,
-	0x50, 0x8f, 0x3d, 0xe6, 0xc4, 0x81, 0x1b, 0x88, 0x3f, 0x22, 0xc7, 0x1e, 0x11, 0x87, 0x2d, 0x24,
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+	0x16, 0x68, 0x21, 0x7d, 0x18, 0x52, 0x28, 0x96, 0x7a, 0x3e, 0x1c, 0x20, 0xd6, 0xb6, 0xe4, 0x9a,
+	0xbb, 0xfd, 0xfa, 0x9a, 0x33, 0x1d, 0x1c, 0x8a, 0x9b, 0xfe, 0xe7, 0x7a, 0xe5, 0x6d, 0x95, 0x05,
+	0x9c, 0x75, 0x26, 0x76, 0x9f, 0x3d, 0xc3, 0x64, 0x81, 0x8d, 0x66, 0xce, 0xde, 0xb4, 0x38, 0x46,
+	0x82, 0xbf, 0x58, 0x60, 0x6d, 0xc6, 0xb9, 0xf0, 0x63, 0xb6, 0x94, 0xe1, 0x47, 0xf7, 0x84, 0x82,
+	0xed, 0x63, 0xb0, 0x32, 0x25, 0x59, 0xc7, 0x7d, 0x38, 0xf7, 0x26, 0x6b, 0x5d, 0x91, 0xbf, 0x1b,
+	0x2c, 0x9b, 0x29, 0x1a, 0xa2, 0x7f, 0xb4, 0x00, 0xa8, 0x66, 0xde, 0xfe, 0x02, 0x2c, 0xb0, 0xbc,
+	0xd4, 0xea, 0xcd, 0x17, 0x3b, 0x10, 0x54, 0x7b, 0x15, 0x2c, 0x64, 0xb9, 0x1a, 0x84, 0x95, 0x40,
+	0x7c, 0xda, 0x7b, 0x60, 0x89, 0x71, 0x48, 0x55, 0x93, 0x37, 0x77, 0x37, 0x67, 0x86, 0xf9, 0xb0,
+	0xfc, 0x23, 0xe2, 0xd7, 0x45, 0xc4, 0x67, 0x62, 0x44, 0x15, 0x65, 0xaf, 0xfe, 0x7d, 0x29, 0xf4,
+	0xdc, 0x02, 0xcb, 0x66, 0x75, 0xdf, 0xb8, 0xb0, 0x3e, 0x58, 0x34, 0xea, 0x39, 0x6f, 0x4e, 0x92,
+	0x6b, 0xfb, 0xa0, 0x31, 0xf9, 0xb7, 0x34, 0x57, 0x1a, 0x15, 0xad, 0xaa, 0xb9, 0xff, 0xe8, 0xfc,
+	0xcf, 0x4e, 0xed, 0xfc, 0xa2, 0x63, 0xbd, 0xbc, 0xe8, 0x58, 0x7f, 0x5c, 0x74, 0xac, 0x67, 0x97,
+	0x9d, 0xda, 0xcb, 0xcb, 0x4e, 0xed, 0xb7, 0xcb, 0x4e, 0xed, 0x5b, 0xcf, 0x50, 0x26, 0x9a, 0xfe,
+	0x6e, 0x86, 0xf8, 0x09, 0xa1, 0xc7, 0xd2, 0xe8, 0x8e, 0x3e, 0xed, 0x9e, 0x96, 0xff, 0x03, 0xa5,
+	0xca, 0xde, 0x35, 0x29, 0xe0, 0xfe, 0xbf, 0x01, 0x00, 0x00, 0xff, 0xff, 0x1e, 0x56, 0x46, 0x8e,
+	0x23, 0x0a, 0x00, 0x00,
 }
 
 func (this *Params) Equal(that interface{}) bool {
@@ -917,7 +918,14 @@ func (m *ExchangeRate) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i = encodeVarintOracle(dAtA, i, uint64(size))
 	}
 	i--
-	dAtA[i] = 0xa
+	dAtA[i] = 0x12
+	if len(m.Denom) > 0 {
+		i -= len(m.Denom)
+		copy(dAtA[i:], m.Denom)
+		i = encodeVarintOracle(dAtA, i, uint64(len(m.Denom)))
+		i--
+		dAtA[i] = 0xa
+	}
 	return len(dAtA) - i, nil
 }
 
@@ -1085,6 +1093,10 @@ func (m *ExchangeRate) Size() (n int) {
 	}
 	var l int
 	_ = l
+	l = len(m.Denom)
+	if l > 0 {
+		n += 1 + l + sovOracle(uint64(l))
+	}
 	l = m.Rate.Size()
 	n += 1 + l + sovOracle(uint64(l))
 	l = github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp)
@@ -2231,6 +2243,38 @@ func (m *ExchangeRate) Unmarshal(dAtA []byte) error {
 		}
 		switch fieldNum {
 		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Denom", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowOracle
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthOracle
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthOracle
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Denom = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field Rate", wireType)
 			}