Well, in one sense, yes.
If you had purchased market indexes near the lows on Friday - (and really, how many had the balls to do that?) you are up 18%. (S&P 500 was at 850, Closed today at 1,003) And if you margined your purchases, you are up 36%.
Most active stock traders (gamblers) would consider that an excellent rally over a week or a month. It happend one day.
Bottom in the way you mean?
I doubt it. The indexes last week smashed through their long established technical support levels. For the Dow as an example, the next strong support level is not until around 7200.
The previous worst two post war stock market slides (73 & 02) shaved nearly half off the market, which this time would take us near....., you guessed it, 7000. Didn't happen last week. Avoided or just delayed?
Even assuming the government rescue and reforms to the financial system work reasonably well, that will do nothing to prevent a recession, it will only prevent immediate systemic collapse and deep depression. Best case, the economy is in store for some tough months ahead as we go into a recession, which will crush corporate earnings, which will drive the market back down.
And just because the government finally started pushing the right buttons, do you trust them to not make some mis-steps on the way?
And in bear makets, there are always bear market rallys, and retesting lows.
Just my worthless opinion, but I would guess there will be oportunities in the future to be purchasing stocks at today's prices, if not lower, possibly a lot lower.