diff --git a/common/contract.ts b/common/contract.ts
index 7f5c5fd5..77568f49 100644
--- a/common/contract.ts
+++ b/common/contract.ts
@@ -29,7 +29,7 @@ export type FullContract<
 
   closeEmailsSent?: number
 
-  volume?: number
+  volume: number
   volume24Hours: number
   volume7Days: number
 
diff --git a/functions/src/create-answer.ts b/functions/src/create-answer.ts
index bc075fb9..fbde2666 100644
--- a/functions/src/create-answer.ts
+++ b/functions/src/create-answer.ts
@@ -121,7 +121,7 @@ export const createAnswer = functions.runWith({ minInstances: 1 }).https.onCall(
         totalShares: newTotalShares,
         totalBets: newTotalBets,
         answers: [...(contract.answers ?? []), answer],
-        volume: (volume ?? 0) + amount,
+        volume: volume + amount,
       })
 
       if (!isFinite(newBalance)) {
diff --git a/functions/src/place-bet.ts b/functions/src/place-bet.ts
index f2ce3bc0..68789096 100644
--- a/functions/src/place-bet.ts
+++ b/functions/src/place-bet.ts
@@ -130,7 +130,7 @@ export const placeBet = functions.runWith({ minInstances: 1 }).https.onCall(
             totalBets: newTotalBets,
             totalLiquidity: newTotalLiquidity,
             collectedFees: addObjects<Fees>(fees ?? {}, collectedFees ?? {}),
-            volume: (volume ?? 0) + Math.abs(amount),
+            volume: volume + Math.abs(amount),
           })
         )
 
diff --git a/functions/src/sell-bet.ts b/functions/src/sell-bet.ts
index 1dd57d2b..4b31cfde 100644
--- a/functions/src/sell-bet.ts
+++ b/functions/src/sell-bet.ts
@@ -81,7 +81,7 @@ export const sellBet = functions.runWith({ minInstances: 1 }).https.onCall(
           totalShares: newTotalShares,
           totalBets: newTotalBets,
           collectedFees: addObjects<Fees>(fees ?? {}, collectedFees ?? {}),
-          volume: (volume ?? 0) + bet.amount,
+          volume: volume + bet.amount,
         })
       )
 
diff --git a/functions/src/update-contract-metrics.ts b/functions/src/update-contract-metrics.ts
index d95dcd80..c3801df6 100644
--- a/functions/src/update-contract-metrics.ts
+++ b/functions/src/update-contract-metrics.ts
@@ -22,11 +22,9 @@ export const updateContractMetrics = functions.pubsub
       contracts.map((contract) => async () => {
         const volume24Hours = await computeVolumeFrom(contract, oneDay)
         const volume7Days = await computeVolumeFrom(contract, oneDay * 7)
-        const volume = await computeVolumeFrom(contract, oneDay * 365)
 
         const contractRef = firestore.doc(`contracts/${contract.id}`)
         return contractRef.update({
-          volume,
           volume24Hours,
           volume7Days,
         })