Alison Frankel doesn't think so:
... if you look closely at what JPMorgan actually admitted, you’ll see that the SEC settlement won’t be of much use to shareholders in the class action. Don’t misunderstand me: JPMorgan is extremely unlikely to escape from the private shareholder case without paying a lot of money. That’s not because of the SEC settlement, however. As I’ll explain, the bank’s lawyers did a very good job of tailoring JPMorgan’s admissions to the SEC to minimize their impact in the class action. In fact, I suspect that future SEC defendants are going to look at the JPMorgan settlement as a model for how to quench regulators’ thirst for blood without spilling a drop in parallel shareholder litigation.
The analysis that follows is spot on. Not having blood dripping into the water is always a good thing when you're dealing with the sharks.