diff --git a/src/helper.ts b/src/helper.ts
index ee728e4..c0e6629 100644
--- a/src/helper.ts
+++ b/src/helper.ts
@@ -10,7 +10,7 @@ import {
     Auction_BidRemoved,
     Contract,
 } from "../generated/Contract/Contract";
-import { Auction, Bid, Incentive, User } from "../generated/schema";
+import { Auction, Bid, Incentive, Statistic, User } from "../generated/schema";
 import { BIGINT_ONE, BIGINT_ZERO } from "./constants";
 
 export function getOrCreateBid(
@@ -94,6 +94,7 @@ export function getOrCreateAuction(
         auction.contractAddress = event.address;
         auction.totalBidsVolume = BIGINT_ZERO;
         auction.royaltyFees = BIGINT_ZERO;
+        auction.totalBids = BIGINT_ZERO;
     }
 
     return auction;
@@ -200,3 +201,16 @@ export function updateProceeds(auction: Auction): Auction {
 
     return auction;
 }
+
+export function getOrCreateStatistics(contractAddress: Bytes): Statistic {
+    let stats = Statistic.load(contractAddress.toHexString());
+    if (!stats) {
+        stats = new Statistic(contractAddress.toHexString());
+        stats.erc1155Auctions = BIGINT_ZERO;
+        stats.erc721Auctions = BIGINT_ZERO;
+        stats.totalBidsVolume = BIGINT_ZERO;
+        stats.totalSalesVolume = BIGINT_ZERO;
+    }
+
+    return stats;
+}
diff --git a/src/mapping.ts b/src/mapping.ts
index e538118..54edad0 100644
--- a/src/mapping.ts
+++ b/src/mapping.ts
@@ -32,6 +32,7 @@ import {
     getOrCreateAuction,
     getOrCreateBid,
     getOrCreateIncentive,
+    getOrCreateStatistics,
     getOrCreateUser,
     updateProceeds,
 } from "./helper";
@@ -104,6 +105,13 @@ export function handleAuction_BidPlaced(event: Auction_BidPlacedEvent): void {
     stats.totalBidsVolume = stats.totalBidsVolume.plus(event.params._bidAmount);
     stats.save();
 
+    // update contract stats
+    let cStats = getOrCreateStatistics(auction.contractAddress);
+    cStats.totalBidsVolume = cStats.totalBidsVolume.plus(
+        event.params._bidAmount
+    );
+    cStats.save();
+
     user.save();
     auction.save();
     bid.save();
@@ -469,6 +477,11 @@ export function handleAuction_ItemClaimed(
     stats.totalSalesVolume = stats.totalSalesVolume.plus(auction.highestBid);
     stats.save();
 
+    // update contract stats
+    let cStats = getOrCreateStatistics(auction.contractAddress);
+    cStats.totalSalesVolume = cStats.totalSalesVolume.plus(auction.highestBid);
+    cStats.save();
+
     bid.save();
     auction.save();
 }