As the yen continues to fall, the question of how low it will go has everyone fascinated with the yen’s performance of the limbo. The ongoing decline of the yen has caused an outpouring of opinions as to when or where its fall will stop.  The ProShares UltraShort Yen ETF (NYSEARCA:YCS) has vaulted from 42.64 on November 13 to 49.99 on December 28.  That amounts to a gain of 17.23 percent in 6½ weeks for anyone with the stomach to remain invested in a leveraged, inverse ETF for such a long period. The six-month chart (below) for the CurrencyShares Japanese Yen Trust ETF (NYSEARCA:FXY) depicts the decline from $126.48 per share on September 27 to its December 28 low of $113.93.  (Chart courtesy of  Stockcharts.com .) The election of Shinzo Abe as Prime Minister of Japan has heightened expectations that the Bank of Japan will be coerced by the Prime Minister to intensify its monetary easing efforts.  As a result, the yen keeps sinking.  At this point, investors in the UltraShort Yen ETF are not the only people wondering when the yen will stop falling.  A look at the USDJPY chart reveals that 90 yen per dollar had been a support level for USDJPY in 2009 and the first half of 2010 – until it fell below 90 on June 25, 2010 and has not returned since.  As a result, many commentators are of the opinion that the yen will finally find support when falls to 90 per dollar.  As of 5:00 EST on December 28, the yen was at 85.96 per dollar.   More Market Moving News from Japan Currency ETF Update: The following is a summary of how currency indices and ETFs performed from the close on Friday, December 21 until the close on Friday, December 28: $US Dollar Index:  +0.07 % PowerShares DB US Dollar Index Bullish Fund ETF (NYSEARCA:UUP):  +0.09% , This ETF reflects US dollar performance as indicated by the Deutsche Bank Long US Dollar Index (USDX) Futures Index (DB Long USD Futures Index).  The USDX Index invests solely in Long USDX Futures Contracts, and compares the performance of the US dollar against the Japanese Yen, the Euro, the Swiss Franc, the British Pound, the Canadian Dollar, and the Swedish Krona. Euro Dollar Index-Philadelphia: EUR:  $132.18  +0.22% CurrencyShares Euro Trust ETF (NYSEARCA:FXE):  +0.22% , This ETF is designed to track the performance of the Euro dollar.  CurrencyShares Euro Trust ETF (NYSEARCA:FXE) is a trust denominated in Euro dollars, and the depository bank is JP Morgan Chase Bank, N.A. London Branch. ProShares UltraShort Euro ETF (NYSEARCA:EUO):  -0.57% , This ETF tracks the 2X inverse daily performance of the Euro dollar in US dollar prices.  The ProShares UltraShort Euro ETF (NYSEARCA:EUO) relies on the EUR/USD cross rate as determined by Reuters by 4 PM EST to determine the price of the Euro in US dollars. Australian Dollar Index-Philadelphia: AUD:  $103.71   -0.33% CurrencyShares Australian Dollar Trust ETF (NYSEARCA:FXA):  -0.30% , This ETF is designed to track the performance of the Australian dollar.  The CurrencyShares Australian Dollar Trust ETF (NYSEARCA:FXA) is a trust denominated in Australian dollars, and the depository bank is JP Morgan Chase Bank, N.A. London Branch. CurrencyShares Swiss Franc Trust ETF (NYSEARCA:FXF)  +0.29% This ETF is designed to track the performance of the Swiss Franc.  The Swiss franc is the national currency of Switzerland and Liechtenstein and the currency of the accounts of the Swiss National Bank, the central bank of Switzerland. The Swiss franc is the sixth-most-traded currency in the world, accounting for 6.4% of global foreign exchange transactions. The USD/Swiss franc pair is the fifth-most-traded currency pair. Japanese Yen Index–Philadelphia: JPY:  $116.39  -1.97%   CurrencyShares Japanese Yen Trust ETF (NYSEARCA:FXY):  -2.14% , This ETF is designed to track the performance of the Japanese Yen.  The CurrencyShares Japanese Yen Trust ETF (NYSEARCA:FXY) is a trust denominated in Japanese Yen, and the depository bank is JP Morgan Chase Bank, N.A. London Branch. Too Big to Jail: It’s a Dark Day for the Rule of Law Bottom Line:  As the Bank of Japan is expected to continue its monetary easing efforts after the election of Shinzo Abe and the Liberal Democratic Party on December 16, investors are attempting to anticipate where the yen will finally find some support to break its fall. Get Wall Street Sector Selectors Free Newsletter for Breaking News About Currency ETFs Disclaimer: The content included herein is for educational and informational purposes only, and readers agree to Wall Street Sector Selector’s Disclaimer , Terms of Service , and Privacy Policy before accessing or using this or any other publication by Wall Street Sector Selector or Ridgeline Media Group, LLC.