You're basically trading interest rate (in equities)... you've locked in a certain rate by long spot vs short future. The convergence is just the release of the interest over time.
While it's virtually riskless in the sense you're hedged on market movement... the only reason you would do a strategy like this is if you think interest rate is too high. Or, if you think a dividend will be paid before expiry, which isn't included in the future pricing at this time. So there is financing and dividend exposure.
Also, I think (like SLE says) for retail this involves a decent amount of financing and financing risk. If leveraged, the financing rate will be a lot higher than what you lock in with the (risk-free) future rate. Even if not leveraged... having to buy multiple stocks in certain quantities will mean a decent cost, I think you're better off just buying T-bills for the same or better return.
Just to clarify... a risk-free strategy which pays a less return as inferior when something better is available. So, you could argue... hey, T-bills are risk-free!!! But that's not what I meant by this thread... (and, even T-bills are not really risk-free, since blablabla)
If you're talking about commodity futures... than there's a whole lot more risk involved.
Okay - thanks for that. I still don't see why this is an interest rate play if you're not leveraged.
Unless you're saying that you receive an interest rate just for being long cash in a brokerage account (or T-Bills - 1%) and this play is to beat that.
Anyway - the setup I've seen is on a crypto platform - Bitmex - Dec. futures for ETH run about 11% above spot - without leverage. Annualized, that's above 50% roi (entering the trade now.) BTC futures are about 1.8% above the swap rate.
Aside from slippage, do you see risk in this play? You would have to go long ETH offsite. You've hedged out exposure to ETH, there is no interest rate on the play anywhere, transaction costs are .01%.
