For example, I can arbitrage my high-credit limit from a CC issuer whom I've had an account with since '99. They will have an offer 0% and deposit the funds to my account directly (it's possible they only do this for long-term customers or 800+ score holders for anyone who wants to insist that this doesn't happen - I promise you that it does). I then take the funds and arbitrage them into something like PDI at almost 15% for the holding period. I've leveraged my credit and done it on "reputation".
what you describe is not arbitraging, its actually called "stoozing" which is part of margin trading
the downside of it is although there is no interest. there is still repayments meaning you cant just lock all the funds in for a long period investment. because you gotta withdraw some money monthly to make repayments
..
arbitraging is taking advantage of more then one market pair. to cycle the funds around to get back to the base market with a profit
EG
[btc-eth] [eth-usd] [usd-btc]
or counter clockwise
[btc-usd] [usd-eth] [eth-btc]
leveraging is again not the name of the game you want to play. leveraging is where you take margin position (the borrowing) but multiply(beyond the amount you have)
Uhhh.... no. I'm talking about credit card arbitrage in that example directly. But I'm using it as an illustration to loosely elicit understanding here to my point about using BTC to make money without disposal of the asset. When you borrow money from a credit card, at a low interest rate, and then invest that money at a higher rate for profit, that is
arbitrage.
To your other point, yes I have swapped coins at moments of opportunity in the past. Specifically with ETH to acquire my first full BTC at the time. And the key there is not just to come out ahead in volume on it's own merits, but to come out ahead in volume greater than you would have at the moment you bought the original asset being swapped out. I wrote a very simple formula on a nice, childlike spreadsheet to help queue me to those moments of benefit in swaps and it's served me well every time.
And yet that still does not address the topic at hand - using your BTC somewhere in the markets to make money without disposing of it. I am looking for "on-topic content substance". Yawn and facepalm