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What Russell 2000 price action would move TZA on the upside back to its 6000 level?
the pricing model makes all inverse leveraged ETF decay over time. When the price gets low the manager can once again do a stock split to make the share price more attractive. The manager usually states a price range that will prompt a stock split, but actually doing the split is at their discretion The Russell 2000 has to decrease a lot yes, but probably just a flash crash of 10% in a day can extend the TZA to extremely high bids and asks. A flash crash that far through the order books would wreck the liquidity of all the underlying assets and especially the derivatives products based on (derived from) those assets. So a mathematical formula to price the ETF during a period of high volatility and low liquidity becomes a lot less of a science and more of a random walk. A good example of this would be to look at the 2010 flash crash and the price behavior of the VXZ ETF, where it spiked to $400/share from maybe $60/share