Before I delve into the accounting loopholes used to prop 3rd-quarter earnings, I will start with pointing out the intimidating amount of ETF choices in the financial sector.
There are 25 financial sector ETFs. These 25 ETFs have drastically different stock holdings and, therefore, allocations. The lowest number of holdings is 24 while the highest is 496, per figure 1.
Market timing is tough duty. Even as stocks have risen inexorably and we all knew it couldn’t go up in a straight line, still picking tops is hard. You can be wrong for a long time, and either lose your shirt shorting the market, or miss out on big gains by staying out. 
The coming week should reduce uncertainty, at least slightly, since we get a bevy of new economic data and 15% of the S&P 500 reports. And maybe Spain will decide whether or not it needs help. Furthermore, we will have the next-to-last Presidential debate tomorrow night. 
Is a September swoon in the cards? It all depends on how Wall Street plays its next hand, which just may have one too many jokers in it.