I think you can do $50-100m in a 24hour period without spooking the market much; that's on regular exchanges. Not sure about the depth of the market where they trade in blocks via some brokers.
You’ll have to split this amount between 7-10 exchanges. That becomes 5-10m/exchange. Coinbase volume today was $150m. $5m should be feasible over 24hours and btc trades 24/7.
Nobody. You’ll never find an answer and just get mumbles. The truth is crypto trading in actual USD (not tether) is super thin. Everything else is smoke and mirrors.
I actively trade these markets, so I have some insights. While I didn’t do $50m-$100m on a single day, I’m judging by market depth on the different exchanges I trade at.
There many small fish trading with a small ($500k-$1m) capital on a 3-5x leverage. They can do some days 5-10m of volume in usd.
Are you trading in actual dirty government fiat (USD) or fake tether (USDT)? There is a huge difference. And also note that some of the larger exchanges aren’t very upfront about which currency you are actually trading in...