The intraday chart is set up for a potential island top, but given it is the end-of-quarter tomorrow, another day of prices holding seems likely. But Yellen's rally doesn't have much power behind it.
An interesting link on zerohedge shows how the rising yen is bearish for the S&P as Japan repatriates assets. I've reproduced their chart above as one to follow.
click chart to enlarge
And the yen remains correlated to gold - gold and yen are weak together now.
click chart to enlarge
I don't maintain that balance sheets inflated in dollar terms caused the current rally - but the chart does reflect the rumored G20 agreement to weaken the dollar and it's apparent (short term) success in stemming global equity weakness.