How To Read Headwinds, Tailwinds, Perch, and Lean Lines

The five words that carry every Trade Plans

Every daily Trade Plans reduces a messy tape to a handful of plain words: headwinds, tailwinds, perch, plus a mark and its plotted lean lines. Learn what each one means and you can read the whole report in seconds and, more importantly, translate it into an actual decision for your timeframe. This page walks through all five with concrete examples, then shows how a day trader, a trader, and an investor read the exact same signal three different ways.

Headwinds: a short lean

Headwinds mean the report is leaning short for a given asset and timeframe. Price is working against longs; the current is at your back only if you are pointed down. A headwind is not a command to short and it is certainly not "the world is ending" — it is a directional bias that tells you which side of the mark deserves the benefit of the doubt.

Worked example. Say the Stock Market Trade Plans tags SPY with headwinds and a mark at 574. That reading changes decisions before you place a single order. A long setup that touches 574 from below is now the low-odds trade — you either skip it or size it small — while a rejection back under 574 is the setup that aligns with the lean. On a short lean, price below the mark keeps the lean in force; a reclaim back above 574 puts it in question. The headwind hasn't told you to sell; it has told you that fighting lower is fighting the tide.

Tailwinds: a long lean

Tailwinds are the mirror image: the report is leaning long. Buyers have the wind, and setups that point up are the ones that agree with the read. The common mistake is treating a tailwind as an automatic buy button. It is not. It is context that raises the odds on long setups you would take anyway — it never replaces your own entry trigger, stop, and size.

Worked example. QQQ carries tailwinds with a mark at 495. A pullback that holds 495 and turns back up is now the setup the report is pointing you toward. On a long lean, price above the mark keeps the lean in force; a break that closes cleanly below 495 is the tell that the tailwind is weakening and the lean may be about to flip. Same chart, but the tailwind tells you where to lean in and where to stand down.

Perch: sit and wait

Perch is the signal most services never give you: no lean — wait for the next session. When an asset is on perch, the report is explicitly saying the odds do not favor either side right now, so the disciplined move is to hold cash and sit still. In a business where doing nothing is the hardest trade to make, perch is permission to make it.

Worked example. ES comes in on perch after a sharp two-day move. There may still be a level in play, but neither side of it has the edge — the bias is neutral, so there is nothing to press. A trader who honors perch skips the session and keeps powder dry; a trader who ignores it forces a trade into a coin-flip tape. Perch is not indecision — it is a called shot to stay flat.

The mark: the level that turns a lean into a plan

A lean tells you the direction; the mark tells you where to express it. The mark is the specific price that acts as the decision line for a given timeframe. It is what converts "we're leaning long" into something you can actually trade. The rule is always relative to the lean, not a fixed side of the number: price on the lean's side of the mark keeps the lean in force; price through the mark to the other side puts it in question — that means above the mark for a tailwind, and below the mark for a headwind. A headwind or tailwind without a mark is an opinion; with a mark it becomes a plan with a built-in line for being wrong.

This is why the mark also defines your invalidation. If SPY carries tailwinds with a mark at 574 and price slices decisively through 574 to the downside and stays there, the very condition that justified the long lean has failed. Flip the lean and the tripwire flips with it: on a headwind at 574, it is a decisive reclaim back above the mark that breaks the short read. The mark is both the trigger and the tripwire — which side confirms depends entirely on which way the report is leaning.

Lean lines: the mark, drawn on your chart

Lean lines are simply the marks plotted directly onto your chart through MyLinedChart, so you are not eyeballing a number from an email against a live tape. The report's levels appear as horizontal lines on ES, SPY, NQ, QQQ, and the ticker setups, which means your eyes and your plan point at the same price. When price interacts with a lean line, that is the moment the report was built for. You can pull the raw numbers from the daily levels and let the lean lines keep them honest on the chart.

Same signal, three timeframes

The single most useful habit is matching the report section to your holding period. A day trader, a trader, and an investor can look at the identical headwind and reach three correct — and different — conclusions.

• Day Trader (intraday, flat by the close): reads the mark as an intraday pivot. A headwind with a mark at 574 means fade strength into 574 while price stays below the mark — that is the side the short lean is in force on — and manage tight; the lean is spent by the closing bell and reset tomorrow.
• Trader (days to weeks): reads the same mark as a swing pivot. A tailwind with price above 574 is a reason to hold longs through normal noise and add on pullbacks that respect the line — until a multi-day close back below it puts the swing lean in question.
• Investor (weeks to months): reads the mark as a positioning boundary, not a trade trigger. Persistent tailwinds and a rising mark support staying allocated and leaning into strength; a stretch of headwinds argues for trimming exposure or raising cash, not day-trading the level.

The timeframe mismatch is where most readers go wrong: acting on the day trader's mark with an investor's holding period, or ignoring a section entirely because it "isn't for me." Read the row that matches how long you actually intend to hold.

Turning the read into a decision

1. Pick your timeframe and read only that row: day trader, trader, or investor.
2. Note the lean — headwinds (short), tailwinds (long), or perch (wait).
3. Find the mark and put the lean line on your chart so price and plan share a level.
4. Let the lean's side of the mark define both your entry side and your invalidation — above it for a tailwind, below it for a headwind — then apply your own setup, stop, and size.

This is a bias-and-level framework, not a signal service that tells you to buy or sell anything — you still bring the trigger and the risk. For precise definitions of these and related terms, see the Trade Plans glossary, and if you want the full daily coverage across futures, sectors, and 100+ ticker setups, compare the free and paid tiers on the pricing page.