The stock market (^GSPC) continues to trend higher as earnings growth remains lackluster. This has caused valuations to get very expensive, signaling a stock market that’s becoming increasingly due for a sharp sell-off.

Everyone is flagging this anxiety-inducing pattern, and yet the market continues to rally arguably nonsensically.

“The S&P 500 has advanced 6.8% YTD (8.4% including dividends) despite a more modest improvement in the earnings outlook (+1.4%),” RBC’s Jonathan Golub observed in a note to clients on Monday. “Put differently, the market’s move higher has been fueled almost exclusively by multiples.”

Most analysts argue that these record-high stock prices are unsustainable without a significant pickup in earnings growth. Unfortunately, there isn’t much hope for that.

“Since EPS trends have typically been associated with S&P 500 index patterns, a sharper-than-expected uptick in profits would be a necessary prerequisite for additional upside,” Citi’s Tobias Levkovich said on Friday. “[A Citi survey suggests] new positive developments would need to emerge to justify more in terms of net income generation. With outstanding issues such as the impact of Brexit and/or fiscal policy post the US elections, it seems challenging to come to any powerful conclusions at this juncture.”

The Fed wants to hike, and the S&P fell 10% after the last hike.

Economic data in the US has been positive, highlighted by notably strong labor market and housing market data. This has put pressure on the Federal Reserve to tighten monetary policy with an interest rate hike sooner than later.

In fact, three members of the Fed have signaled that a hike will come sooner in just the past week. Last Tuesday, NY Fed President William Dudley said “we’re edging closer towards the point in time where it will be appropriate to raise rates further.” On Thursday, San Francisco Fed President John Williams said every meeting, including the one coming in September, should “be in play” for a rate hike. On Sunday, Fed Vice Chair Stanley Fischer said “we are close to our targets.”

“A more hawkish Fed could trigger a return of volatility if financial conditions (USD, credit spreads) start to deteriorate again,” Societe Generale’s Patrick Legland said on Monday. “The S&P 500 fell c.10% following the first rate hike last December.”

In that same breath, Legland warned of the importance of earnings to the stock market.

“US company earnings were better than expected in Q2,” he acknowledged. “But the sharp increase in valuation ratios (S&P 500 forward P/E 17x, P/B 2.9x) puts the onus on EPS growth at a time when global GDP growth remains uninspiring.”