21 unchanged sentences
Should producers of the commodities underlying the S&P GSCI-ER increase their hedging of their future production through forward sales or other short positions, this increased selling pressure could depress the price of one or more of the underlying commodities, which could adversely affect the price of the Shares.
−Removed: A significant change in the attitude of speculators and investors toward the futures contracts or commodities underlying the S&P GSCI‑ER.
+Added: A significant change in the attitude of speculators and investors toward the futures contracts or commodities underlying the S&P GSCI‑ER.
Should the speculative community take a negative view towards one or more of the underlying futures contracts or commodities, it could cause a decline in the price of the Index Futures, which may reduce the price of the Shares.
4 unchanged sentences
In that case, you could buy Shares at prices affected by the temporarily high commodity prices, and you could subsequently incur losses when the causes for the temporary increase disappear.
−Removed: (2)    
−Removed: The risk factor entitled “During a period when commodity prices are fairly stationary, an absence of “backwardation”
+Added: (2)     The risk factor entitled “During a period when commodity prices are fairly stationary, an absence of “backwardation”
in the prices of the commodities included in the S&P GSCI-ER may cause the price of your Shares to decrease" is modified to read as follows:
8 unchanged sentences
While some of the contracts included in the S&P GSCI-ER have historically exhibited periods of backwardation, backwardation will likely not exist at all times.
−Removed: Moreover, some of the commodities reflected in the S&P GSCI-ER have historically exhibited 
−Removed: characteristics typical of “contango”
+Added: Moreover, some of the commodities reflected in the S&P GSCI-ER have historically exhibited characteristics typical of “contango”
markets rather than backwardation.
4 unchanged sentences
While contango and backwardation are consistently present in trading in the commodity markets, such conditions can be exacerbated by market forces.
−Removed: For example, following the onset of the COVID-19 pandemic, as a result of an excess supply of crude oil and weak demand as well as disputes among oil-producing countries regarding limitations on oil production, the crude oil futures markets experienced extraordinarily high levels of contango in the first half of 2020, resulting in a negative price in the May 2020 WTI crude oil futures contract on April 20, 2020.
+Added: For example, following the onset of the COVID-19 pandemic, as a result of an excess supply of crude oil and weak demand as well as disputes among oil‑producing countries regarding limitations on oil production, the crude oil futures markets experienced extraordinarily high levels of contango in the first half of 2020, resulting in a negative price in the May 2020 WTI crude oil futures contract on April 20, 2020.
The effects of rolling futures contracts under such conditions generally are more severe than rolling futures contracts in the absence of such conditions.
67 unchanged sentences
The duration of the outbreak and its effects cannot be determined with certainty.
−Removed: (5)    
−Removed: The risk factor entitled “Changes in the composition and valuation of the S&P GSCI-ER may adversely affect your Shares.”
+Added: (5)     The risk factor entitled “Changes in the composition and valuation of the S&P GSCI-ER may adversely affect your Shares.”
is modified to read as follows:
15 unchanged sentences
Such changes could adversely affect the value of your Shares or otherwise affect the risks associated with owning the Shares, such as by increasing relative concentrations in particular commodities and causing the value of the Shares to become more sensitive to fluctuations in the prices of those commodities.
−Removed: (6) The risk factor entitled “Exchange position limits and other rules may restrict the creation of Baskets and the operation of the Trust.”
+Added: (6)     The risk factor entitled “Exchange position limits and other rules may restrict the creation of Baskets and the operation of the Trust.”
is modified to read as follows:
15 unchanged sentences
On May 13, 2020, the CFTC published a Staff Advisory on Risk Management and Market Integrity under Current Market Conditions addressed to DCMs, FCMs and derivatives clearing organizations (“DCOs”) registered with the CFTC (the “Staff Advisory”).
−Removed: The Staff Advisory notes that adverse economic conditions resulting from the COVID-19 pandemic have coincided with substantially increased market volatility in key agricultural, energy, and financial sectors, including the futures and options on futures markets regulated by the CFTC, and that the impact has been particularly acute for contracts that call for physical delivery of the underlying 
+Added: The Staff Advisory notes that adverse economic conditions resulting from the COVID-19 pandemic have coincided with substantially increased market volatility in key agricultural, energy, and financial sectors, including the futures and options on futures markets regulated by the CFTC, and that the impact has been particularly acute for contracts that call for physical delivery of the underlying commodity.
The Staff Advisory notes DCMs, FCMs and DCOs should prepare for the possibility that certain contracts may continue to experience extreme market volatility, low liquidity and possibly negative pricing.
4 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.