Research-backed articles on investing, personal finance, trading, and options, designed to help you understand these topics from first principles.https://www.mattdanadel.com/enhttps://www.mattdanadel.com/blog/investing/bitcoin-or-index-funds/https://www.mattdanadel.com/blog/investing/bitcoin-or-index-funds/Both tabs are open and both sides are shouting. What each asset actually is, bitcoin's real return record, and which one a beginner's first years need.Fri, 24 Jul 2026 00:00:00 GMTInvestinghttps://www.mattdanadel.com/blog/money/pay-off-debt-or-invest/https://www.mattdanadel.com/blog/money/pay-off-debt-or-invest/Splitting spare money between the card and the market feels fair. Fair is how you treat people. Rates are how you treat money, and yours are already written.Thu, 23 Jul 2026 00:00:00 GMTMoneyhttps://www.mattdanadel.com/blog/money/how-much-cash-should-i-keep/https://www.mattdanadel.com/blog/money/how-much-cash-should-i-keep/Too much cash quietly costs you; too little is one bad week from a card balance. Sort it into its three real jobs and the right total falls out on its own.Wed, 22 Jul 2026 00:00:00 GMTMoneyhttps://www.mattdanadel.com/blog/money/what-to-do-with-your-money-first/https://www.mattdanadel.com/blog/money/what-to-do-with-your-money-first/Card, savings, match, market: every destination for a dollar pays a rate you can look up. Read the four rates and the order stops being a matter of opinion.Tue, 21 Jul 2026 00:00:00 GMTMoneyhttps://www.mattdanadel.com/blog/money/high-yield-savings-vs-investing/https://www.mattdanadel.com/blog/money/high-yield-savings-vs-investing/You have money sitting still and no idea which pile it belongs in. The question is not which pays more. It is when you need it back, and that decides for you.Mon, 20 Jul 2026 00:00:00 GMTMoneyhttps://www.mattdanadel.com/blog/money/how-big-should-my-emergency-fund-be/https://www.mattdanadel.com/blog/money/how-big-should-my-emergency-fund-be/Three to six months is a shrug, and the gap between them is a year of saving. Build the number from your own costs and how long your income could really stop.Tue, 14 Jul 2026 00:00:00 GMTMoneyhttps://www.mattdanadel.com/blog/investing/how-much-money-to-start-investing/https://www.mattdanadel.com/blog/investing/how-much-money-to-start-investing/You are waiting until you have a serious amount. The entry price is a few dollars, and the number that decides the outcome is the one you can repeat.Thu, 09 Jul 2026 00:00:00 GMTInvestinghttps://www.mattdanadel.com/blog/trading/swing-trading-vs-day-trading/https://www.mattdanadel.com/blog/trading/swing-trading-vs-day-trading/You are comparing the two as though the choice were yours. Your calendar already voted: one of them wants attendance at the hours your job owns.Thu, 25 Jun 2026 00:00:00 GMTTradinghttps://www.mattdanadel.com/blog/trading/how-much-money-to-day-trade/https://www.mattdanadel.com/blog/trading/how-much-money-to-day-trade/Three tabs, three confident answers, all quoting a $25,000 rule that is being retired while you read them. What limits an account now, and what never changed.Thu, 11 Jun 2026 00:00:00 GMTTradinghttps://www.mattdanadel.com/blog/options/how-much-money-to-trade-options/https://www.mattdanadel.com/blog/options/how-much-money-to-trade-options/Nobody names a number because there is no legal one. The real gates, and the division that turns your risk on a single trade into an account size.Wed, 10 Jun 2026 00:00:00 GMTOptionshttps://www.mattdanadel.com/blog/investing/how-much-of-my-paycheck-should-i-invest/https://www.mattdanadel.com/blog/investing/how-much-of-my-paycheck-should-i-invest/Ten percent, fifteen, twenty: every number you have been handed was chosen without seeing your rent. How to find the one your own month can defend.Thu, 04 Jun 2026 00:00:00 GMTInvestinghttps://www.mattdanadel.com/blog/investing/what-to-do-when-the-market-crashes/https://www.mattdanadel.com/blog/investing/what-to-do-when-the-market-crashes/Your account is down and every instinct says do something. What three real crashes did, what reacting cost the people who did it, and the short list that helps.Tue, 19 May 2026 00:00:00 GMTInvestinghttps://www.mattdanadel.com/blog/options/what-are-the-greeks/https://www.mattdanadel.com/blog/options/what-are-the-greeks/Your call lost money on the day the stock went up. Five measures explain why a premium moves, three do nearly all the work, and one of them is what got you.Wed, 29 Apr 2026 00:00:00 GMTOptionshttps://www.mattdanadel.com/blog/money/what-to-do-with-your-first-paycheck/https://www.mattdanadel.com/blog/money/what-to-do-with-your-first-paycheck/The deposit is smaller than the offer letter promised and nobody explained the stub. Read it once, flip four settings, and they run for years without you.Thu, 23 Apr 2026 00:00:00 GMTMoneyhttps://www.mattdanadel.com/blog/money/how-does-a-401k-match-work/https://www.mattdanadel.com/blog/money/how-does-a-401k-match-work/You accepted the rate your enrollment screen pre-filled. That number was chosen by someone who never saw your finances, and it can collect half the match.Thu, 16 Apr 2026 00:00:00 GMTMoneyhttps://www.mattdanadel.com/blog/investing/roth-ira-vs-brokerage-account/https://www.mattdanadel.com/blog/investing/roth-ira-vs-brokerage-account/The signup form asks which account before anyone explains the difference. You are not choosing an investment. You are choosing a tax deal, and the date decides.Tue, 14 Apr 2026 00:00:00 GMTInvestinghttps://www.mattdanadel.com/blog/investing/what-is-an-index-fund/https://www.mattdanadel.com/blog/investing/what-is-an-index-fund/Everyone tells you to buy one and nobody says what it is. A definition that holds, what active management really costs, and the three checks that pick a fund.Tue, 07 Apr 2026 00:00:00 GMTInvestinghttps://www.mattdanadel.com/blog/investing/how-to-start-investing/https://www.mattdanadel.com/blog/investing/how-to-start-investing/You have meant to start for two years. The decisions that feel enormous turn out to be the small ones, and the only expensive one is the waiting.Thu, 02 Apr 2026 00:00:00 GMTInvestinghttps://www.mattdanadel.com/blog/options/most-options-expire-worthless/https://www.mattdanadel.com/blog/options/most-options-expire-worthless/Someone selling a strategy quoted you 90%. No organisation publishes that figure. The industry's own count: 72% closed early, 22% expired, 6% exercised.Tue, 31 Mar 2026 00:00:00 GMTOptionshttps://www.mattdanadel.com/blog/options/is-options-trading-gambling/https://www.mattdanadel.com/blog/options/is-options-trading-gambling/Half the internet calls it gambling and half calls that ignorance. Gambling is measurable, researchers have measured it, and the line runs through behavior.Wed, 18 Mar 2026 00:00:00 GMTOptionshttps://www.mattdanadel.com/blog/options/calls-and-puts-explained/https://www.mattdanadel.com/blog/options/calls-and-puts-explained/You have heard both words and could not define either under pressure. Calls and puts in the rulebook's own language, with every number worked through.Thu, 05 Mar 2026 00:00:00 GMTOptionshttps://www.mattdanadel.com/blog/options/what-is-a-covered-call/https://www.mattdanadel.com/blog/options/what-is-a-covered-call/Your brokerage grew an income button above your shares. The money is real, and the banner never says what you sold to get it: the stock's best months.Thu, 26 Feb 2026 00:00:00 GMTOptionshttps://www.mattdanadel.com/blog/trading/paper-trading-vs-real-money/https://www.mattdanadel.com/blog/trading/paper-trading-vs-real-money/Your practice account is up and you cannot tell whether that means anything. What a simulator teaches, what it cannot price, and how to switch across by size.Tue, 24 Feb 2026 00:00:00 GMTTradinghttps://www.mattdanadel.com/blog/trading/what-is-position-sizing/https://www.mattdanadel.com/blog/trading/what-is-position-sizing/Being right about the stock is not enough if you staked a third of the account on it. Size sets the price of being wrong, and being wrong is routine.Thu, 12 Feb 2026 00:00:00 GMTTradinghttps://www.mattdanadel.com/blog/trading/what-is-a-stop-loss/https://www.mattdanadel.com/blog/trading/what-is-a-stop-loss/You set a stop at $46 and the shares sold at $41, with nothing malfunctioning. A stop is an instruction, not insurance, and the difference shows up once.Wed, 11 Feb 2026 00:00:00 GMTTradinghttps://www.mattdanadel.com/blog/trading/how-long-to-learn-trading/https://www.mattdanadel.com/blog/trading/how-long-to-learn-trading/You are eight months in and feel behind a schedule nobody set. Real trading records say the unit of learning is trades placed, not months survived.Tue, 03 Feb 2026 00:00:00 GMTTradinghttps://www.mattdanadel.com/blog/options/what-options-are-for/https://www.mattdanadel.com/blog/options/what-options-are-for/You have met options twice: a careful aunt buying puts, and a group chat turning $500 into $28,000. Both are the same instrument doing the same job.Tue, 27 Jan 2026 00:00:00 GMTOptionshttps://www.mattdanadel.com/blog/trading/what-happens-to-day-traders/https://www.mattdanadel.com/blog/trading/what-happens-to-day-traders/Your first month went well and you have the screenshots. Complete records of everyone who tried, in two whole markets, answer what those screenshots cannot.Fri, 09 Jan 2026 00:00:00 GMTTrading