The Power Index ranks the 11 S&P 500 sectors by relative performance for the week ending March 27, 2026, using the full Monday close to Friday close window. This is the Monday slot, so the read is built from the completed weekly sector structure already in hand by Friday’s close.
Energy keeps the top spot into the new week. Real Estate stays pinned to the bottom. The top of the table leaned defensive and inflation-sensitive, while the bottom stayed crowded with rate pressure, housing stress, and weaker consumer-facing exposure. This was not broad leadership. It was selective leadership.
Ranked: The Split
Energy at number one is not just a ranking result. It is where money kept going.
That matters.
When a sector holds first place into the Monday read, it tells you the weekly window did not end with a loose bounce or a random reshuffle. It ended with a clear winner. Energy stayed at the top because the market kept paying for that exposure while much of the rest of the board struggled to keep up.
But the real signal is what sat right behind it.
Utilities at number two. Consumer Staples at number three.
That changes the character of the table.
If this were a clean risk-on week, you would expect more cyclicals pushing into the top tier and holding there. That did not happen. Instead, the upper end of the ranking leaned toward sectors that hold up when the market wants protection, cash flow, or basic necessity exposure.
That is what makes this table stronger as a read.
It is not just that Energy won. It is that the next two spots helped define the kind of leadership we got.
The top of the board did not broaden out. It narrowed into a very specific mix.
Now look at the bottom.
Consumer Discretionary finished ninth. Health Care finished tenth. Real Estate stayed dead last.
That is a weak lower tier, but not a random one. Those positions point to the same pressure points. Real Estate still could not get off the floor. Health Care did not act like a clean safe haven. Consumer Discretionary stayed low enough to show the market still was not eager to pay up for more fragile consumer exposure.
Real Estate matters most here.
Last place is not just underperformance. It is rejection.
When the sector sits at the bottom through a full weekly window, with no meaningful recovery in rank, that says money is still avoiding it. Not trimming it. Avoiding it.
The middle of the board also tells you something useful.
Materials, Industrials, and Financials were not strong enough to take control, but they were not broken either. They sat in the middle because money was willing to tolerate them, not chase them. That is a very different behavior from true rotation.
And that is the real structural read from this week’s hierarchy:
Money did not spread across the sector map. It stayed concentrated in a narrow pocket of energy strength and defensive support.
That is why this table feels tighter than a normal weekly ranking. The top did not open up. The bottom did not recover. The middle did not force a regime change.
So the signal is not noise. It is discipline.
Leadership stayed narrow.
Defense still mattered.
Real Estate never got rescued.
That leaves the table with one unresolved tension still sitting inside it:
The market found places to hide and one place to pay up. It still did not find many places to trust.