diff --git a/mm2src/coins/eth.rs b/mm2src/coins/eth.rs
index cba9ece714..9cae50c63c 100644
--- a/mm2src/coins/eth.rs
+++ b/mm2src/coins/eth.rs
@@ -2131,11 +2131,13 @@ impl MarketCoinOps for EthCoin {
         }
     }
 
+    #[inline]
     fn min_tx_amount(&self) -> BigDecimal { BigDecimal::from(0) }
 
+    #[inline]
     fn min_trading_vol(&self) -> MmNumber {
-        let pow = self.decimals / 3;
-        MmNumber::from(1) / MmNumber::from(10u64.pow(pow as u32))
+        let pow = self.decimals as u32;
+        MmNumber::from(1) / MmNumber::from(10u64.pow(pow))
     }
 }
 
diff --git a/mm2src/coins/qrc20.rs b/mm2src/coins/qrc20.rs
index c99f2d47b7..b094146be5 100644
--- a/mm2src/coins/qrc20.rs
+++ b/mm2src/coins/qrc20.rs
@@ -1270,11 +1270,13 @@ impl MarketCoinOps for Qrc20Coin {
 
     fn display_priv_key(&self) -> Result<String, String> { utxo_common::display_priv_key(&self.utxo) }
 
+    #[inline]
     fn min_tx_amount(&self) -> BigDecimal { BigDecimal::from(0) }
 
+    #[inline]
     fn min_trading_vol(&self) -> MmNumber {
-        let pow = self.utxo.decimals / 3;
-        MmNumber::from(1) / MmNumber::from(10u64.pow(pow as u32))
+        let pow = self.utxo.decimals as u32;
+        MmNumber::from(1) / MmNumber::from(10u64.pow(pow))
     }
 }
 
diff --git a/mm2src/coins/tendermint/tendermint_coin.rs b/mm2src/coins/tendermint/tendermint_coin.rs
index 33e48d1885..911d3ed6bb 100644
--- a/mm2src/coins/tendermint/tendermint_coin.rs
+++ b/mm2src/coins/tendermint/tendermint_coin.rs
@@ -2394,9 +2394,11 @@ impl MarketCoinOps for TendermintCoin {
             .to_string())
     }
 
+    #[inline]
     fn min_tx_amount(&self) -> BigDecimal { big_decimal_from_sat(MIN_TX_SATOSHIS, self.decimals) }
 
-    fn min_trading_vol(&self) -> MmNumber { MmNumber::from("0.00777") }
+    #[inline]
+    fn min_trading_vol(&self) -> MmNumber { self.min_tx_amount().into() }
 }
 
 #[async_trait]
diff --git a/mm2src/coins/tendermint/tendermint_token.rs b/mm2src/coins/tendermint/tendermint_token.rs
index f985ccec3c..bfae306b32 100644
--- a/mm2src/coins/tendermint/tendermint_token.rs
+++ b/mm2src/coins/tendermint/tendermint_token.rs
@@ -594,10 +594,11 @@ impl MarketCoinOps for TendermintToken {
 
     fn display_priv_key(&self) -> Result<String, String> { self.platform_coin.display_priv_key() }
 
+    #[inline]
     fn min_tx_amount(&self) -> BigDecimal { big_decimal_from_sat(MIN_TX_SATOSHIS, self.decimals) }
 
-    /// !! This function includes dummy implementation for P.O.C work
-    fn min_trading_vol(&self) -> MmNumber { MmNumber::from("0.00777") }
+    #[inline]
+    fn min_trading_vol(&self) -> MmNumber { self.min_tx_amount().into() }
 }
 
 #[async_trait]