Subject: Tradr ETFs - 2x SPY et al weekly or monthly
Not sure whether this has been pointed out ... but new 2x ETFs have been recently launched that offer 2x the return of the SPY & QQQ (and a few other tickers also) across a week or a month (provided you buy at the correct time & hold it for the period - then the ETFs rebalance). They've been launched by Tradr ETFs at https://www.tradretfs.com/ .

So ... if you have a week or month SPY or QQQ strategy that is highly reliable with a sufficiently high probability of success you could juice those weekly or monthly returns without resorting to using your own leverage. Be careful though these products could really hurt (in a similar fashion to the daily 2x ETFs but more slowly)!