Author: PK

PK started DQYDJ in 2009 to research and discuss finance and investing and help answer financial questions. He's expanded DQYDJ to build visualizations, calculators, and interactive tools. PK lives in New Hampshire with his wife, kids, and dog.
Are Leveraged ETFs Building Up a New Systemic Risk?

Leveraged ETFs, unlike most ETFs you can buy at your friendly neighborhood broker, are generally (there are some exceptions) vehicles […]

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Using Options to Predict Future Closing Prices! The Mid June 2014 Edition.

What happens when you take options prices, treat the current trading price as your 'key', and take the range of […]

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The DQYDJ Weekender, 6/14/2014

A whole week in the books, and three articles in a row which didn't even have a whiff of finance […]

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8.5 More Pounds in 16 More Days - End of Another Diet Run!

Yeah, I'm using hyperbole in the title again to make you click; tricked you! 'Real', non-water weight loss this time […]

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How to Produce 640x480 Color VGA Video From an 8-Bit Arduino

Most 8-bit AVRs in the wild (including this project's Arduino Nano) run at a default maximum 16 MHz. That's 16,000,000 […]

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The DQYDJ Weekender, 6/7/2014

What's up with the spam comments lately?  Previously, most spam in my pending comments was gushing with ebullient comments about […]

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How to Double Clock Frequency Using Only Digital Logic

One of the projects I was working on once required a doubling of clock speed from an Arduino Nano, which […]

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The DQYDJ Weekender, 5/31/2014

5 years blogging. That said, I don't see any internal signs of slowing down - which is, of course, the […]

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The DQYDJ Weekender, 5/24/2014

Yeah, I know, I skipped last week - it's hard to motivate yourself to write blog posts on 1,300 calories.  […]

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How I Lost 11 Pounds in 15 Days.

Here's the quick rundown if you're not into the whole shock value thing: I didn't get sick.  I lost 11 […]

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Don't Quit Your Day Job...

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