Note that assets in tier 2 used to be LTC, BCH, EOS, DOT, BSV, LINK, FI, ADA, TRX, UNI, and XRP.MR2: time decay risk (options only) Time decay risk measures the 24-hour decay in portfolio value, assuming no change in underlying asset price moves and implied volatility.MR3: vega term structure risk (options only) Vega term structure risk arises from differences in options value for the same underlying asset with different expiry dates under the same implied volatility shock.