The news and tip trap: why reacting loses money
The answer
By the time information reaches you through an app, a channel or a group, the price already contains it. What moves a price is the difference between the news and what was expected, and that difference is priced by participants who receive the announcement directly from the exchange feed. A tip that is genuinely valuable is either false or illegal to act on.
Why this costs you money
A news trade has a shape, and the shape is the same every time.
You see a headline at 11:04. The stock is already up 5%. You buy at 11:05 because the news is good and the move looks like it has started.
Now look at what you have actually done, one element at a time.
Your entry price was chosen by the news, not by your rule. You are 5% above where any of your setups would have triggered.
Your stop has no place to go. The chart level that would normally define your stop is now 6% below you, so your risk per share has roughly tripled. If you place a closer stop instead, it sits inside the day's ordinary movement and will be hit by noise.
Your size was not calculated. There was no time. The position was sized by what felt reasonable, which means it was sized by how convincing the headline was.
You have no exit rule, because the trade was not in the plan and the plan has no section for it.
None of that is about being wrong on the news. You could be entirely right about the company and still lose on this trade, because every input to the trade was set by the clock instead of by the method.
Then there is the second cost, and it is larger over a year. Trades taken on news arrive at random times, which means they arrive on top of whatever you already hold. They are the main route by which portfolio heat, from article 4, rises without anybody deciding.
How it works
The price moves on the surprise
A share price already reflects what participants expect. When an announcement arrives, the price adjusts by the distance between the announcement and the expectation.
This is why a company can report record profits and fall. The record was expected, and the guidance was slightly below what was expected. The headline says one thing and the price says another, and the price is responding to the part the headline does not carry.
To trade this you would need to know what was expected, precisely, before the announcement. That number is available to institutions as a consensus estimate. It is rarely what a retail trader has in mind when they read a headline.
You are the slowest participant
Automated systems read announcements from the exchange feed, calculate the difference from expectations and trade, in the time it takes a person to read the first line. This is covered in detail in the cluster on how the market works. The conclusion for this article is narrow: reacting quickly to public information is not a strategy, and it stopped being one about 20 years ago.
Buy the rumour, sell the news
This phrase describes a mechanism, and the mechanism is about positioning rather than about sentiment.
Before an expected event, participants who believe they know the outcome buy in advance. The price rises through that period. By the day of the event, most of the buying that was going to happen because of it has already happened.
Then the event confirms the expectation. There is now nobody left to buy for that reason, and the participants who bought early have a reason to sell. The price falls on good news, because the flow that was supporting it has run out.
The useful conclusion is not to sell every event. It is that the position of other participants matters more than the content of the news, and you cannot observe their positions from a headline.
How a promotion actually works
The mechanism is old and it does not change.
- Somebody accumulates a large position in a company whose shares trade in small daily volumes. Accumulating quietly is possible precisely because nobody is watching.
- A story is distributed. Videos, messages, group chats, sometimes a recognisable name attached to it.
- Volume arrives. The new buying pushes the price up, which becomes evidence for the story, which brings more buying.
- The original position is sold into that volume. The buyers at the end are the only people who can be sold to, because there is nobody after them.
Three features identify this before you act, and all 3 are visible in 60 seconds.
- Low average daily volume. A promotion needs a share where a modest amount of buying moves the price. Check the 20-day average volume.
- Urgency. A reason why you must act today. A genuine analysis does not expire this afternoon.
- No verifiable registration. Check whether the source is registered with the regulator, and check whether they have disclosed being paid.
Why a tip cannot be valuable and legal at the same time
If information is not public and it would move the price, acting on it is insider trading in both countries. If it is public, it is already in the price.
That leaves 1 remaining category: information that is public, has not yet been priced, and has been given to you free by a stranger. Ask what that stranger gains from your buying, and the category usually explains itself.
Doing nothing is a position
A fund must deploy capital. A market maker must quote. You are under no obligation to have a position at any moment. That is a genuine structural advantage and it is the one most often given away, usually to fill a day that was set aside for trading.
What it tells you, and what it does not
This tells you that reacting to public information after it is public has a negative expected value after costs. It does not tell you that news is irrelevant.
News matters in 3 ways that are compatible with a plan.
As a filter. A rule that says you do not hold a position through a results announcement is a news rule, decided in advance, and it is useful.
As context over weeks. A change in interest rates or in a regulatory framework changes conditions for months. That is slow enough to act on with a method.
As a reason to reduce. Reducing size before a scheduled event with a wide range of outcomes is a risk decision, not a prediction.
What does not work is the specific act of seeing a headline and placing an order because of it.
The decision rule
Before acting on any piece of information, answer 4 questions. If any answer is unsatisfactory, do nothing.
- Is this public? If yes, assume the price contains it. If no, acting on
it is likely illegal.
- Who benefits if I act? Name the person or firm. If the answer is the
person who told you, that is the trade.
- Would my written rules have produced this position today without the
story? If no, it is not a trade, whatever the story says.
- What would make me wrong, and at what price do I accept that? If you
cannot state both, there is no position to size.
Question 3 is the one that removes the most trades, and it takes 5 seconds.
Try this now
Five minutes with your own history. Most readers have not looked at their trades this way and the result is usually decisive.
- Download your last 3 months of trades from your broker's report section.
- Go through them one by one. For each, write down why you took it. Be honest, because nobody else reads this.
- Mark with an N every trade you took because of something you read, watched or were told that same day. A headline, a video, a message in a group, a post, a friend at work.
- Count the N trades as a percentage of all trades.
- Add up the profit and loss of the N trades. Separately, add up the profit and loss of everything else.
What you should see. Two numbers, and both are usually uncomfortable.
The first is the count. Most active traders find that between 20% and 50% of their trades were triggered by information that arrived that day, which means those positions were not produced by their method at all.
The second is the profit and loss split. In most accounts the N trades are a disproportionate share of the losses, and frequently they account for more than the total loss, meaning the rest of the trading was profitable and this category consumed it.
If your N count is zero, check step 3 again. Include trades where the story came first and you then found a chart reason for it. That order of events is the one worth catching, and it is easy to miss because the chart reason was real.
Three real cases
1. SEBI, Sadhna Broadcast Limited (India, interim order March 2023) — a promotion, with named participants SEBI passed an interim order restraining a number of entities from the securities market in a matter concerning alleged manipulation of the shares of Sadhna Broadcast Limited. The order described videos published on YouTube recommending the share, followed by selling by connected entities. The entities named included the actor Arshad Warsi and his wife. Several parties later obtained relief on appeal. The point is the sequence, which is the one described above: quiet accumulation, distribution of a story, selling into the volume the story created.
2. SEC and Department of Justice actions against social media promoters (United States, December 2022) — the same mechanism, a different platform The SEC filed charges, and the Department of Justice brought parallel criminal charges, against a group of individuals who allegedly used Twitter and a Discord server to promote shares they held and then sold into the buying that followed. The alleged proceeds were reported in the region of $100 million. The defendants had large followings and published their positions in a way that appeared open. The alleged conduct was in the timing of the selling, not in the existence of the opinions.
3. The Indian general election result, 3 and 4 June 2024 — the rumour and the news, 1 day apart Exit polls published after voting ended pointed to a particular outcome, and on 3 June 2024 Indian equity indices rose sharply. On 4 June 2024, when actual results differed from the exit polls, the indices fell sharply, with the Nifty 50 recording one of its largest single-day falls. Anybody who bought on 3 June was buying a position that other participants had already taken, at a price that already contained the expectation. The information was public, free and widely discussed, which is exactly why it was in the price.
The question that resolves it
A novice asks: is this news good or bad for the stock?
An expert asks: what did participants expect, and what have they already done about it?
The first question is about the announcement. The second is about positioning, and positioning is what actually moves prices in the hours after an announcement. A retail trader can rarely answer the second question, and recognising that is more valuable than guessing at it.
What would make this wrong
If retail traders reacting to public news earned positive returns after costs, this article would be wrong. The available account-level evidence points the other way, though it measures trading activity in general rather than news trades specifically.
The honest limits.
Some news is slow. Changes in regulation, tax or interest rates play out over months. A method that positions for those over weeks is not competing on speed and this article does not apply to it.
Not every promoted share falls. Some heavily promoted companies are genuine businesses that perform well. The objection is not that the story is always false. It is that the price at which you can act has already absorbed the promotion, and that the person promoting has a position you cannot see.
Registered advice exists and is legitimate. Registered investment advisers and research analysts operate under disclosure obligations in both countries. The problem described here is unregistered promotion, or registered promotion without disclosure of payment, not the existence of paid analysis.
Doing nothing has a cost too. A trader who takes no position because something is in the news will miss real moves. That cost is real and it is smaller than the cost measured in the exercise above.
In India
Advice is a registered activity. Giving investment advice for consideration requires registration with SEBI as an investment adviser, and publishing research recommendations requires registration as a research analyst. Registration can be checked on SEBI's website in under a minute. Anybody recommending specific shares for payment without registration is operating outside the framework.
SEBI has acted against unregistered advice and finfluencers. A series of orders in 2023 and 2024 restrained individuals from the securities market for providing advice without registration, and SEBI introduced measures restricting regulated entities from associating with unregistered persons who make return claims.
Surveillance lists are public. Shares placed under the Additional Surveillance Measure or the Graded Surveillance Measure carry restrictions such as higher margins or periodic call auctions. A share appearing on these lists is a visible signal that the exchange has concerns about its trading. Checking takes 30 seconds and is not part of most retail routines.
Group messaging is the main distribution channel. Tips circulate through messaging groups and channels, often with a claimed source. The identifying features remain the ones listed above: low daily volume, urgency, and no verifiable registration.
In the United States
Promotion is legal if the payment is disclosed. Section 17(b) of the Securities Act of 1933 makes it unlawful to publish a description of a security for compensation without disclosing that compensation and its amount. The regulatory question in the United States is therefore usually not whether somebody is registered, but whether they were paid and whether they said so.
The SEC has enforced this against public figures. In October 2022 the SEC announced a settlement with Kim Kardashian concerning the promotion of a crypto asset without disclosing payment, with amounts reported at approximately $1.26 million in total.
Regulation Fair Disclosure changed who hears news first. Adopted in 2000, Regulation FD requires that material information disclosed to some market participants be disclosed publicly. This narrowed selective disclosure to analysts, and it also means public announcements are genuinely simultaneous, which is why the automated reaction is so fast.
Social platforms have produced episodes at scale. The concentrated buying in a small number of heavily shorted shares in January 2021 was coordinated largely through public forums, and produced very large moves in both directions. Traders who entered late in that episode bought at prices that did not persist.
Where they differ, and what that tells you
The Indian question is whether the person is registered. The American question is whether the payment was disclosed.
India regulates entry to the activity. You may not give advice for consideration without registration, so the first check on any source is a registration number, and it is verifiable on the regulator's website.
The United States regulates disclosure within the activity. Almost anybody may publish an opinion about a share, but if they were paid to publish it, section 17(b) requires them to say so and to state the amount. The first check on an American source is whether a disclosure appears.
What that tells you is that the same 60-second check has a different first step in each country, and neither check is the one most people perform. Most people evaluate the argument. The argument is the part that has been prepared for you, and it is the least informative thing available.
There is a second consequence, and it matters for Indian readers. A great deal of trading content reaching India is written for American conditions, where publishing opinions without registration is normal. A reader who imports that expectation will treat an unregistered Indian source as ordinary, when in India it is a specific signal.
Carry this
- The price moves on the difference between the news and what was expected. You rarely know the second half.
- If your written rules would not have produced this position today without the story, it is not a trade.
- A promotion needs low volume, urgency and an unverifiable source. All 3 are checkable in 60 seconds.
- A tip that is valuable is either false or illegal to act on.
- Doing nothing is a position, and it is the one advantage you hold over every professional participant.