// writing
Posts tagged #finance
A mix of technical deep-dives, career reflections, and dispatches from the road.
tag: #finance

financeOct 17, 2026· 5 min
Position Sizing: The Risk Decision That Matters More Than Your Entry
How much you put into a trade quietly decides whether you survive a losing streak. Here is the math behind fixed fractional sizing, the 1% rule, and why practitioners cut the Kelly criterion in half.
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financeOct 14, 2026· 5 min
Perpetual Futures: How Funding Rates Keep a Contract With No Expiry Honest
Perpetual futures are the most traded product in crypto, and they never expire. Here's how the funding rate keeps them pinned to spot, what it costs to hold one, and why leverage makes the math unforgiving.
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financeOct 10, 2026· 4 min
Bitcoin's Security Budget: What Happens When Fees Are Under 1% of Miner Revenue
Bitcoin pays miners mostly with newly issued coins, a subsidy that halves every four years. In 2026 transaction fees cover less than 1% of that bill. Here's how the security budget works and why the fee share matters.
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financeOct 7, 2026· 5 min
Where Your Stock Order Actually Goes: Wholesalers, PFOF, and the NBBO
Most retail stock orders in the US never touch an exchange. Here is how wholesalers, payment for order flow, and the NBBO decide what price you actually get, and what changed in 2026.
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financeOct 3, 2026· 5 min
How ACH Actually Moves Money: Batches, Windows, and Nacha's 2026 Rules
Why bank transfers take the time they do, how ACH files and settlement windows work, and what Nacha's 2026 fraud-monitoring rules changed for everyone sending payments.
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financeSep 30, 2026· 5 min
Buy Now, Pay Later: Who Actually Pays for Interest-Free
Pay-in-four loans cost the shopper nothing when things go right, so someone else is paying. Here's how the BNPL money flows, why merchants eat the cost, and what changes as these loans start hitting credit reports.
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financeSep 26, 2026· 4 min
Ethereum Staking Explained: What Validators Actually Earn and Risk
Staking gets pitched as a savings account for crypto. Here's how Ethereum validators really earn rewards, why the yield keeps shrinking, and what slashing, queues, and liquid staking tokens add to the risk.
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financeSep 23, 2026· 5 min
Technical vs. Fundamental Analysis: Two Questions, Not Two Teams
Fundamental analysis asks what a business is worth. Technical analysis asks what the price is doing. Here's how each one works, what the research says, and why the rivalry is mostly a category error.
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financeSep 19, 2026· 4 min
The Robo-Advisor Fee Is the Smallest Number That Matters
Robo-advisors advertise a single advisory fee, usually a quarter of a percent. That number is real, and it is nowhere near the full cost. Here is what the machine is actually doing with your money, and where the rest of the bill hides.
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financeSep 16, 2026· 5 min
What DAO Vote Counts Say About Decentralized Governance
DAOs promise governance without a boardroom. The actual turnout numbers, delegate concentration, and a few expensive attacks tell a more complicated story about how these organizations really run.
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