Fat fingers in trading

Having a bad week with 3 fat finger mistakes: wrong size, wrong direction, wrong contract month. Confirmation windows don't do a thing for me. I am curious if I am the only person with this issue or does everyone have fat fingers once in a while?

Stories from execution traders informing portfolio managers that they have a position of 10x size in a stock, shedding a few % would be appreciated too.

14 Comments
 

I have my fair share of fat fingers. If you dont, you dont trade enough.

CNBC sucks "This financial crisis is worse than a divorce. I've lost all my money, but the wife is still here." - Client after getting blown up
 
Best Response

3 in a week is waay to much. I find they tend to only happen after a very long run of no mistakes, and then as soon as you make one you really make sure you dont have another one for weeks/months.

ive heard of some bad ones, but the best one was when a trader ended up long a huge amount of stock accidentally in the auction and only realized after the close, walked non chalantly to a structured desk and they ended up needing almost that exact amount for one of their product hedges haha.

 

I definitely had a bad week about a month ago. Went about 2 years without a single mistake, and then two, two days in a row. I was like what is wrong with me?! Then I was quadruple checking everything that I was doing. I'm back to how I normally would operate, but still, that week and the next couple were stressful wondering if I was going to make another mistake.

make it hard to spot the general by working like a soldier
 

I've made a few here and there - never too serious so I can usually reverse them with minimal pain - then just report the mistakes for booking and accept the bollocking. One colleague made one and got a bollocking - the stress got to him and he made another and another...didn't end well for him.

Usually mistakes happen when I get too comfortable after a long run with no errors.

 

3 in a week is a lot, as some have said above you should check the process of how you receive trades. When I started trading I had difficulty with fat fingers or trading errors until I figured out the correct process for me.

Also try reading 'The Checklist Manifesto' it's a great book to show how important checklists and 'sanity checks' are to a repeatable process like trading.

 

Delectus quo voluptatibus ut repellat sed laborum. Non sint dolorem et eos. Quos et doloribus impedit nisi id incidunt.

Sunt cupiditate sunt autem unde. Occaecati qui ab in dolore assumenda eos. Exercitationem dolores et quod inventore reprehenderit. Nisi est inventore id quo corrupti magnam. Blanditiis repellendus quas at quo dignissimos quia unde. Tempora qui libero voluptas veniam aut qui sunt.

Nostrum libero perspiciatis magni nobis quidem aut. Ducimus inventore velit numquam qui soluta. Maiores officiis eius fuga nostrum voluptatibus. Fugiat molestiae dolores illo temporibus corporis rerum fugit. Nam distinctio consequuntur est quis. Illo suscipit vero labore eligendi est occaecati recusandae non.

Career Advancement Opportunities

July 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.9%
  • JPMorgan 01 98.3%
  • Guggenheim Partners 01 97.7%
  • Morgan Stanley 07 97.2%

Overall Employee Satisfaction

July 2026 Investment Banking

  • Moelis & Company No 99.4%
  • Evercore No 98.9%
  • Morgan Stanley 01 98.3%
  • Banco Santander 02 97.7%
  • BMO Capital Markets 12 97.1%

Professional Growth Opportunities

July 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.9%
  • Morgan Stanley 06 98.3%
  • Goldman Sachs 01 97.7%
  • JPMorgan 01 97.2%

Total Avg Compensation

July 2026 Investment Banking

  • Vice President (16) $429
  • Associates (46) $258
  • 3rd+ Year Analyst (8) $210
  • 2nd Year Analyst (22) $179
  • Intern/Summer Associate (14) $159
  • 1st Year Analyst (80) $150
  • Intern/Summer Analyst (73) $101
notes
16 IB Interviews Notes

“... there’s no excuse to not take advantage of the resources out there available to you. Best value for your $ are the...”

Leaderboard

1
redever's picture
redever
99.2
2
Secyh62's picture
Secyh62
99.0
3
kanon's picture
kanon
99.0
4
BankonBanking's picture
BankonBanking
99.0
5
DrApeman's picture
DrApeman
98.9
6
GameTheory's picture
GameTheory
98.9
7
CompBanker's picture
CompBanker
98.9
8
dosk17's picture
dosk17
98.9
9
Betsy Massar's picture
Betsy Massar
98.9
10
Mimbs's picture
Mimbs
98.8
success
From 10 rejections to 1 dream investment banking internship

“... I believe it was the single biggest reason why I ended up with an offer...”