• 

  42%−0.4%

  Narrow Democratic Control

  Democrats convert Sabato’s narrow advantage into a bare Senate majority, helped by open-seat weakness in North Carolina and late-cycle Republican slippage in Alaska and Maine. The outcome is plausible because the forecast follows multiple rating moves toward Democrats in Alaska, Kansas and other battlegrounds.

  Energy −0.7% · Finance −0.6% · Healthcare −0.5%

• 

  28%+0.2%

  Republicans Barely Hold

  Republicans outperform the late forecasts just enough to retain control, with incumbents or replacement nominees surviving in at least two of the races Democrats need. This remains realistic because the Democratic edge is described as narrow and late polling errors in Senate races are common.

  Energy +0.6% · Finance +0.5% · Industrials +0.3%

• 

  20%−0.9%

  Clear Democratic Wave

  The late-cycle Democratic advantage broadens into a clearer wave, with suburban and independent voters moving against Republican Senate candidates. This is less likely than a narrow outcome but consistent with the sequence of rating shifts in Alaska and Kansas.

  Energy −1.3% · Finance −1.1% · Healthcare −0.8%

• 

  10%−0.5%

  Control Remains Unresolved

  The election produces no immediate answer because one or more decisive races are within recount margins or depend on ranked-choice tabulation. This is a lower-probability but credible scenario given the number of close Senate races and Alaska’s counting process.

  Finance −0.4% · Consumer Cyclicals −0.3% · Technology −0.1%

Each figure is the modeled move of the S&P 500 if it happens. For information only. Not investment advice.