<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>alexpotato</author><text>I&amp;#x27;ve worked in &amp;quot;FinTech DevOps&amp;quot; for the past 10 years and this reminds me of a story from a past job:&lt;p&gt;We hired the Global Head of Clearing [0] from a big bank and on their first day they were giving a presentation on their background and how financial clearing works.&lt;p&gt;Someone asked &amp;quot;What is your nightmare scenario?&amp;quot;&lt;p&gt;The response:&lt;p&gt;&lt;i&gt;We have a large overnight position in a security. Our Prime Broker (PB) [1] comes back and says &amp;quot;We disagree with you on the position so you can&amp;#x27;t trade.&amp;quot; Even if it turns out that the PB is wrong, by the time it all gets sorted out, the market has moved so much in that security that it bankrupts us. I&amp;#x27;ve seen it happen to other firms and it&amp;#x27;s not pretty.&lt;/i&gt;&lt;p&gt;I also started at Knight right after their big outage. [2] People like to talk about the big tech outages sinking financial firms but it can just as easily be plain old issues with bookkeeping that can blow up a firm.&lt;p&gt;0 - &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.investopedia.com&amp;#x2F;terms&amp;#x2F;c&amp;#x2F;clearing.asp&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.investopedia.com&amp;#x2F;terms&amp;#x2F;c&amp;#x2F;clearing.asp&lt;/a&gt;&lt;p&gt;1 - &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.investopedia.com&amp;#x2F;articles&amp;#x2F;professionals&amp;#x2F;110415&amp;#x2F;role-prime-broker.asp&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.investopedia.com&amp;#x2F;articles&amp;#x2F;professionals&amp;#x2F;110415&amp;#x2F;r...&lt;/a&gt;&lt;p&gt;2 - &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.thestreet.com&amp;#x2F;investing&amp;#x2F;stocks&amp;#x2F;knight-capital-shuts-down-trading-on-electrical-outage-11752932&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.thestreet.com&amp;#x2F;investing&amp;#x2F;stocks&amp;#x2F;knight-capital-sh...&lt;/a&gt;</text><parent_chain></parent_chain></comment><story><title>Robinhood maxed out credit line last month amid market tumult</title><url>https://www.bloomberg.com/news/articles/2020-03-10/robinhood-maxed-out-credit-line-last-month-amid-market-tumult</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>shanxS</author><text>As a small investor (investing around few thousand USD), how do I know which app to trust?
There is Robinhood and Stash for ETFs and Stocks and then there are robot-wealth mangers like WealthFront etc.&lt;p&gt;Should I always stick to big firms like Vanguard or Fidelity?
Thing I don&amp;#x27;t like about firms like Vanguard and Fidelity is that you cannot buy fraction of a unit which Robinhood&amp;#x2F;Stash allow you to do.&lt;p&gt;Any advice?</text><parent_chain></parent_chain></comment><story><title>Robinhood maxed out credit line last month amid market tumult</title><url>https://www.bloomberg.com/news/articles/2020-03-10/robinhood-maxed-out-credit-line-last-month-amid-market-tumult</url></story>