Found 2 exchanges where Kaspa is traded for BTC. According to the data on 27 August the most optimal price to exchange KAS for BTC is ₿0.00000035 for 1 Kaspa. This rate is fixed at CoinEx at the maximum trading volume of the pair KAS/BTC - 0.1 BTC.
The maximum daily trading volume is observed in the KAS/USDT trading pair at KuCoin and reaches ₿ 22.07 (0.139% of the exchange's total trading volumes) at the price ₿ 0.00000036 per 1 KAS.
The minimum price to buy KAS for BTC is 0.00000036 - on the exchange KuCoin.
The maximum price to buy KAS/BTC is 0.00000035 - on the exchange CoinEx.
Warning: some KAS markets show an abnormally wide spread — those quotes may be unreliable (thin liquidity or off-market trades). Cross-check the volume against several venues.