Premium Discount

Key Terms

• Net Asset Value (NAV) : The price per share at which ProShares issues and redeems shares. It is calculated in a manner consistent with other mutual funds (normally 4:00 p.m. ET) every day the NYSE is open.

• Current Market Price : Price at which an investor can buy or sell and ETF during the trading day.

• Intraday Value : An ETF’s intraday value (also abbreviated as IOPV or IIV) is an estimated fair value of its holdings based on the most recent prices of its underlying securities. It should closely approximate the net asset value (NAV) of an ETF throughout the trading day.

• Market Price at NAV Time : Price that is the midpoint between the national best bid and national best offer at the time the ProShares calculates its NAV.

• Discount : The amount the ProShares Market Price at NAV Time is below the reported NAV, expressed as a % of NAV.

• Premium : The amount the ProShares Market Price at NAV Time is above the reported NAV, expressed as a % of NAV.

• Basis Point : a unit of measure used to describe the percentage change in the value of financial instruments or the rate change in an index or other benchmark. One basis point is equivalent to 0.01% (1/100th of a percent) or 0.0001 in decimal form.