Goldman Sachs and the other financial stocks saw weakness on Friday, even though the markets rallied higher. This is a change in character that investors should note. Could things be changing? Is the rally ready for a correction? To decipher this, simply follow Goldman Sachs (NYSE:GS) next week. Goldman Sachs has major support at $245. Should that level break, it will collapse to $228, taking the whole market down. Goldman Sachs has become a staple for the entire market rally. Should Goldman fall, the whole market will fall. Note the stock chart below.