@MontereyJack,
I'm pretty sure that's the most inaccurate summary I've ever read.
Early on Obama's "watch" he dealt with the total tanking of the global economy, and the orchestrated GFC crashing of Wall street, by opening up the coffers of the US taxpayer, to grant massive amounts of moolah to bail out the TBTF orgs (too big to fail) but "forgot" to tell them what to do with the money, so they handed themselves performance bonuses, instead of using the cash to open up lending again, which he claimed was his intention.
Since that time, the federal reserve (not a US org under Obama's watch) has been repeatedly bailing out Wall street's chronic gamblers with various "devices" called quantitative easing. None of these did much more than temporarily halt the downward slide of the stock exchange.
To say that Obama helped anything here is rather absurd, because presidents don't get to boss around the fed.