Found 2 exchanges where Wormhole is traded for BTC. According to the data on 7 August the most optimal price to exchange W for BTC is ₿0.00000013 for 1 Wormhole. This rate is fixed at WhiteBIT at the maximum trading volume of the pair W/BTC - 0.4 BTC.
The maximum daily trading volume is observed in the W/USDT trading pair at OKEx and reaches ₿ 13.69 (0.0616% of the exchange's total trading volumes) at the price ₿ 0.00000013 per 1 W.
The minimum price to buy W for BTC is 0.00000013 - on the exchange WhiteBIT.
The maximum price to buy W/BTC is 0.00000013 - on the exchange CoinEx.