The Line of Least Resistance
Trade with the direction the market is already tending to move, rather than betting on where it 'should' go by outside reasoning.
One of Livingston's own most distinctive, specific trading concepts: rather than forming an opinion about where a stock "should" go and betting on that opinion, watch the market's own actual price action for its current line of least resistance — the direction it's already tending to move with the least apparent effort — and trade with that observed tendency rather than against it.
This is a deliberately different starting point from fundamental analysis or personal conviction about a stock's "true value" — it's a discipline of reading what the market is actually doing right now, in real time, rather than what an investor believes it logically ought to do based on outside reasoning.
Livingston's own account treats this as one of the harder disciplines to actually practice, precisely because it requires setting aside a personal opinion, which can feel like abandoning your own analysis, in favor of what the tape is currently showing — a real, ongoing tension between analytical conviction and the market's own current behavior that runs through the rest of this course.
This chapter opens the book's second major part specifically because it's the first idea Livingston developed after his bucket-shop instincts stopped working cleanly on real exchanges, covered in the previous two chapters. The line of least resistance is, in effect, his own answer to the specific gap those chapters identified — a discipline built for reading real markets with real execution mechanics, rather than a bucket-shop-era habit carried forward unchanged.
| Opinion-driven | Line of least resistance | |
|---|---|---|
| What decides direction | A personal view of what the stock "should" do | What the price is actually doing right now, with the least apparent effort |
| Risk if wrong | Can mean fighting the actual trend for a long, costly stretch | Aligned with the current trend by construction — wrong less often, though not never |
An investor with a strong, well-reasoned view that a stock is undervalued can watch its price continue falling for a long stretch.
The temptation in that situation is to treat the falling price as an increasingly attractive opportunity to add to the position, since a lower price makes the original undervaluation thesis look even more true by the investor's own math — but the line-of-least-resistance discipline asks the investor to separate that mathematical observation from the tape's own, currently contrary, message about the stock's actual direction.
The line-of-least-resistance discipline says to respect that falling tendency rather than fight it purely on the strength of a personal conviction about eventual fair value — a genuinely uncomfortable thing to do when your own analysis says the opposite, and exactly the discipline Livingston repeatedly struggled to maintain across his own career.
Livingston isn't arguing that fundamental opinions don't matter at all — he's arguing about sequencing: let the market's current actual behavior be the trigger for when to act, rather than acting purely on when your own analysis concluded something, regardless of what the market is currently doing.
This distinction matters because it preserves the value of genuine analytical work while changing when that work gets acted on. An investor's fundamental view can be entirely correct and still be poorly timed if it's acted on before the market's own behavior confirms it — the line of least resistance is a discipline about timing the execution of a view, not a claim that the underlying view itself is unimportant.
Imagine an investor who has concluded, through careful analysis, that a stock is meaningfully undervalued, but who notices the price is still drifting lower with no signs of a real bottom forming. Rather than buying immediately on the strength of the analysis, the line-of-least-resistance discipline says to wait until the price action itself starts showing the tendency has shifted — even if that means missing the very lowest price and paying somewhat more than the theoretical bottom. The cost of waiting is real, but it's smaller than the cost of fighting a falling tendency that continues for longer than expected.
- The line of least resistance is the direction price is already tending to move, observed from actual market behavior rather than predicted from outside reasoning.
- Trading with this observed tendency, rather than against it based on personal opinion, is the core of this specific discipline.
- This is a sequencing argument, not a rejection of analysis — let current market behavior decide timing, even when your analysis points elsewhere.
- A falling price can make an undervaluation thesis look mathematically more attractive while the tape is simultaneously signaling the opposite — the discipline is separating those two signals.
- Livingston himself found this one of the hardest disciplines to consistently apply, especially when it contradicted his own strong personal conviction.