diff --git a/lib/primitive/cardano-wallet-primitive.cabal b/lib/primitive/cardano-wallet-primitive.cabal
index f181ef21245..853fdb79b80 100644
--- a/lib/primitive/cardano-wallet-primitive.cabal
+++ b/lib/primitive/cardano-wallet-primitive.cabal
@@ -113,6 +113,7 @@ library
     Cardano.Wallet.Primitive.Types.RewardAccount
     Cardano.Wallet.Primitive.Types.RewardAccount.Gen
     Cardano.Wallet.Primitive.Types.SlottingParameters
+    Cardano.Wallet.Primitive.Types.StakePoolSummary
     Cardano.Wallet.Primitive.Types.TokenBundle
     Cardano.Wallet.Primitive.Types.TokenBundle.Gen
     Cardano.Wallet.Primitive.Types.TokenBundleMaxSize
diff --git a/lib/primitive/lib/Cardano/Wallet/Primitive/Types/StakePoolSummary.hs b/lib/primitive/lib/Cardano/Wallet/Primitive/Types/StakePoolSummary.hs
new file mode 100644
index 00000000000..b4221a3e4ae
--- /dev/null
+++ b/lib/primitive/lib/Cardano/Wallet/Primitive/Types/StakePoolSummary.hs
@@ -0,0 +1,44 @@
+{-# LANGUAGE NamedFieldPuns #-}
+
+module Cardano.Wallet.Primitive.Types.StakePoolSummary
+    ( StakePoolsSummary (..)
+    ) where
+
+import Prelude
+
+import Cardano.Wallet.Primitive.Types.Coin
+    ( Coin (..)
+    )
+import Cardano.Wallet.Primitive.Types.PoolId
+    ( PoolId (..)
+    )
+import Data.Map
+    ( Map
+    )
+import Data.Quantity
+    ( Percentage
+    )
+import Fmt
+    ( Buildable (..)
+    , listF'
+    , mapF
+    , pretty
+    )
+
+import qualified Data.Map as Map
+
+data StakePoolsSummary = StakePoolsSummary
+    { nOpt :: Int
+    , rewards :: Map PoolId Coin
+    , stake :: Map PoolId Percentage
+    }
+    deriving (Show, Eq)
+
+instance Buildable StakePoolsSummary where
+    build StakePoolsSummary{nOpt, rewards, stake} =
+        listF'
+            id
+            [ "Stake: " <> mapF (Map.toList stake)
+            , "Non-myopic member rewards: " <> mapF (Map.toList rewards)
+            , "Optimum number of pools: " <> pretty nOpt
+            ]