Already struggling this year, the Financial Select Sector SPDR (NYSEArca: XLF), the largest exchange traded fund dedicated to the financial services sector, could be confounded this month by some unfavorable seasonal factors.

The financial services sector, which is locked in an intense battle with healthcare for the second spot in the S&P 500 behind technology, is historically one of the worst-performing sectors in the month of June. As for XLF, it is usually the worst performer among the nine original sector SPDR ETFs in the six month of the year.

“Specifically, the Financial Select Sector SPDR Fund (XLF) is one of the worst-performing exchange-traded funds (ETFs) in the month of June, according to data from Schaeffer’s Senior Quantitative Analyst Rocky White. The average June XLF loss over the past 10 years is 3.4%, with the ETF positive just 20% of the time,” reports Schaeffer’s Investment Research.

XLF and other financial services exchange traded funds have spent ample time in the spotlight this year as the Federal Reserve raised interest rates in March and due to speculation that the Trump Administration could deliver reforms that could bolster the sector.

Higher interest rates would help widen the difference between what banks charge on loans and pay on deposits, which would boost earnings for the financial sector. Regional banks are among the stocks most positively correlated to rising interest rates because higher rates improve net interest margins.

“And though XLF has repeatedly found a floor in the $23.00-$23.50 region — home to its year-to-date breakeven mark and a 23.6% Fibonacci retracement of its recent rally — the formerly supportive 50-day moving average appears to have switched roles to act as resistance,” according to Schaeffer’s.

The good news for financials is that the sector, the second-worst performer this year behind only energy, is widely regarded as perhaps the only sector in the U.S. that is attractively valued relative to the broader market and its own long-term averages.

Aggressive traders looking to capitalize on June woes for bank stocks can consider the Direxion Daily Financial Bear 3X Shares (NYSEArca: FAZ)ProShares UltraPro Short Financials (NYSEArca: FINZ) and Direxion Daily Regional Banks 3x Bear Shares (NYSEArca: WDRW).

Other bearish plays on the sector include the ProShares Short Financials ETF (NYSEArca: SEF), which takes the single inverse or -100% of financial stocks, and the ProShares UltraShort Financials (NYSEArca: SKF), which takes a leveraged -200% of financials.

For more information on the financial sector, visit our financial category.