Breadth Slips Into a Clear Risk-Off Gear

By Kristoff De Turck - reviewed by Aldwin Keppens - Last update: Dec 18, 2025
ChartMill Market Monitor Report Trends and Breadth

Index overview (SPY, QQQ, IWM)

Short Term (Daily)

ChartMill US Indices Performance daily

Long Term (Weekly)

ChartMill US Indices Performance weekly

SPY - short-term trend breaks, support still below

SPY closed at 671.4 (-1.1%), finishing near the day’s low and back under both EMA9 (~679.96) and EMA21 (~678.85). That’s a notable momentum shift: over the past sessions the market was wobbling, but still acting like dip-buyers had control. Today, price action says sellers are taking the wheel, at least short-term.

Key takeaway: short-term trend damage, with overhead supply now clearly defined near the recent highs (red zone).

Nearest structural support: the green zone lower (mid-650s area) remains untested, so we’re not in “panic” territory yet, but the market is leaning on fewer pillars.

QQQ - the weak link today

QQQ was the standout on the downside, closing 600.41 (-1.9%) after opening above 613 and sliding almost straight down. It also finished below EMA9 (~611.98) and EMA21 (~614.9), which usually goes hand-in-hand with breadth deterioration (and today’s breadth confirms it).

QQQ adds a bearish momentum confirmation: beyond closing below both EMA’s, the EMA9 has now crossed beneath the EMA21, which is a classic short-term trend reversal signal. It doesn’t guarantee a prolonged downswing on its own, but it does raise the odds that rebounds get capped earlier and that overhead supply becomes more active, especially if breadth (adv/decl, SMA20+) keeps weakening alongside it.

Watch level: the ~590 support zone (green) is the next obvious “must-hold” area if sellers stay active.

IWM - down, but relatively steadier

IWM closed 247.24 (-1.1%), also dropping under EMA21 (~248.29) (and under EMA9 as well). Small caps didn’t lead today’s selloff (QQQ did), but they still joined the move, which matters, because it reduces the chance this is just a narrow sector wobble.

Key takeaway: relative resilience vs QQQ, but still short-term trend break.

Support: the lower green zone (low-230s area) remains the bigger structural “line in the sand.”

Big picture from the charts

All three indexes ended the day below their short-term trend rails (EMA9/21), while weekly charts still look constructive overall (price remains above the rising 30-week trend line). That’s the classic setup for a market that’s still in a longer-term uptrend, but losing short-term internal traction.

Breadth dashboard (10-day window): the internals confirmed the warning

ChartMill US Breadth Numbers

Yesterday’s report already showed participation thinning (sub-40% advancers, fewer stocks above key averages). Today’s data turns that from “early caution” into “confirmed deterioration.”

Daily breadth: decisively bearish

  • Advancers: 33.4% vs Decliners: 63.2%

  • Big downside days dominated: Decliners -4%: 7.5% vs Advancers +4%: 1.9%

This is not a benign pause. When the -4% decliners meaningfully outnumber +4% advancers, the market is telling you distribution is spreading beyond a handful of names.

Trend participation: slipping below key thresholds

  • % above SMA20: 47.5% (back below 50%)

  • % above SMA50: 46.4%

  • % above SMA200: 58.5% (still healthy-ish)

This is an important mix: longer-term structure still okay (SMA200+ remains elevated), but the short- and medium-term layers are eroding. That typically translates into choppy price action, failed breakouts, and fewer clean trend setups.

Breakouts are drying up fast

  • New highs (NH): 2.2% (down sharply from the 9–12% burst earlier in the window)

  • New lows (NL): 1.5% (still not extreme, but creeping higher)

This is one of the most telling shifts of the week: the market isn’t “crashing,” but it’s stopping rewarding strength. That’s how rallies lose momentum — first, fewer leaders push to new highs; then, more stocks start slipping under moving averages; then, the indexes finally follow.

Weekly breadth flipped hard lower

  • Adv Week: 33.1% vs Decl Week: 65.8%

That’s the big escalation versus the prior session. A weak day is one thing; when the weekly breadth rolls over this far, it raises the odds the market is transitioning from “dip-and-rip” into “sell-the-rally.”

Medium-term backdrop: not broken, but no longer supportive

  • Adv Month: 62.1% / Decl Month: 37.1% (still positive)

  • Adv 3 Month: 44.6% / Decl 3 Month: 54.4% (still negative bias)

  • Adv 25% (3M): 8.6% / Decl 25% (3M): 12.3% (more deep losers than deep winners)

So we’re not in a market with broad upside thrust. It’s more consistent with a tape where strength is concentrated and fragile, and weakness is slowly spreading.

What this likely means for traders (human context)

Today has the feel of a market where confidence is thinning and participants are less willing to “buy first, ask questions later.” Even without pinning the move to any single headline, the data reads like a risk-reduction day: fewer advancers, more hard down moves, and collapsing new highs.

In practice, that usually shows up as:

  • More failed breakouts and “pop-and-drop” action.

  • More mean reversion (chop) instead of smooth trends.

  • A higher premium on risk management and selectivity.

Breadth trend rating (1–7)

Rating: neutral, negative bias.

ChartMill US Breadth Trend Rating

The long-term trend (weekly structure / rising 30-week line) still argues against calling this outright “bearish.” But the short-term breadth damage is now too clear to ignore: daily/weekly internals deteriorated, participation under key moving averages is slipping below 50%, and new highs have collapsed.

Tactical levels to watch next

  • SPY: can it reclaim the EMA21 quickly, or does it drift toward the mid-650s support zone?

  • QQQ: biggest tell, if it can’t stabilize, breadth usually continues to weaken. Watch the ~590 support area.

  • IWM: relative steadiness helps sentiment, but only if small caps stop joining the selloffs.

If we see another session where decliners dominate and SMA20+/SMA50+ keep sliding, the probability rises that this is more than a one-day shakeout.


Kristoff

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