Quantitative Finance

Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message **Chris (the organizer)** with a **title and short description** of what you’d like to share. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services)

A very Midwest way to spend the night. Euchre Night at TownHall Short North brings cards, cocktails, and community together for an easygoing evening of friendly competition. All skill levels welcome—confidence encouraged.

**Web Design Decoded: Tools, Practices, and Proven Processes:** **Semantic HTML** At WebDev Columbus, we are exploring some of the most important topics of professional high-end web design and page building. Primarily focused on site building in the WordPress environment, our group explores tools, tips, and techniques for building the best WordPress sites possible. Additionally, we focus on disciplines and technologies that take website design from visually appealing to optimized spaces for delivering you and/or your client's message effectively and with a nod towards extended reach. Each session combines practical demonstrations with real-world insights, giving you actionable knowledge you can apply immediately. Whether you're a seasoned developer looking to enhance your design skills or a newcomer wanting to understand design best practices, this series offers valuable insights for every skill level. **What to expect:** * Hands-on demonstrations of popular design tools * Best practices for design-to-development workflows * Tips for creating responsive, accessible designs * Real-world problem-solving scenarios * Interactive Q&A sessions * Networking opportunities with fellow developers **Each meetup features:** 60 minutes of focused presentation 30 minutes of live demonstrations 30 minutes for questions and discussion **See you there!** Our casual, collaborative environment encourages learning from both presenters and fellow attendees. Bring your questions, share your experiences, and connect with Central Ohio's web development community! **Stay tuned for specific session topics and dates.**

Join us for The Fisherman by John Langan. In upstate New York, in the woods around Woodstock, Dutchman's Creek flows out of the Ashokan Reservoir. Steep-banked, fast-moving, it offers the promise of fine fishing, and of something more, a possibility too fantastic to be true. When Abe and Dan, two widowers who have found solace in each other's company and a shared passion for fishing, hear rumors of the Creek, and what might be found there, the remedy to both their losses, they dismiss it as just another fish story. Soon, though, the men find themselves drawn into a tale as deep and old as the Reservoir. It's a tale of dark pacts, of long-buried secrets, and of a mysterious figure known as Der Fisher: the Fisherman. It will bring Abe and Dan face to face with all that they have lost, and with the price they must pay to regain it.

Please join the Columbus Atlassian Events Team for an evening program where we show you how we are using the Atlassian tools to track, manage and collaborate with others on our hobbies, From Jira & Confluence and Lego, to Tabletop gaming and Trello to miniature painting and Jira. Join the Columbus Atlassian leaders as they walk you through how the Atlassian tools enhance their passion projects.   We'll go over space structures, lessons learned as we built and tracked our project and how it helped us organize group adventures.   Looking forward to sharing our fun with you!Please take note of the New Location and Time of the event. Pay Parking can be found on street, and in locations marked. Agenda --- Speakers Kimberly Deal - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Kevin Stanley - Columbus Atlassian User Group Leader Moderators Kimberly Deal - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Kevin Stanley - Columbus Atlassian User Group Leader Hosted By Kimberly Deal, Atlassian User Group Leader Kevin Stanley, Chief Everything Greg Sprowls, Agility Lead --- Global Partner Atlassian (http://atlassian.com) Millions of users globally rely on Atlassian products every day for improving software development, project management, collaboration, and code quality. For over a decade, Atlassian customers have come together to network, share ideas, solve problems, and find new ways to use Atlassian products. Today, more than 15,000 people take part in Atlassian community events in more than 30 countries. --- Complete your event RSVP here: https://ace.atlassian.com/events/details/atlassian-columbus-presents-for-the-love-of-atlassian-using-atlassian-to-manage-your-passion-projects/.

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. (NOTICE - Location change!) This session will be at the Karl Road Branch of the Columbus Library in the Conference Room 2.

Salsamante Dance Academy will be at Swerve Every Tuesday Night to share the Rhythm & Energy of Bachata & Salsa. These are Beginner Level lessons to get you comfortable and understand the two dances. Spread the Good News to all. Swerve Dance & Fitness Complex 640 Lakeview Plaza Blvd A, Worthington, OH 43085 Bachata 7pm-8pm Salsa 8pm-9pm $15 - One Lesson $20 - Both Lessons

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** *Spec-Driven Development with GitHub Spec-Kit: From Intent to Implementation* Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects. **YouTube Link** TBA

Our next much-awaited **COLUMBUS** meetup is **Tuesday February 24 from 7-10 pm at ACE OF CUPS**. Meet patients, cultivators, processors, dispensary managers/staff, physicians, home growers, educators, activists, nonprofits, artists, attorneys, business owners, writers, students, and supporters to network, share our knowledge, collaborate, support each other and make new friends! WE HOPE TO BE COLLECTING SIGNATURES TO OVERTURN SB56. BRING YOUR FRIENDS, COLLEAGUES AND FAMILY MEMBERS TO JOIN US AND SIGN! Hope you will be there too! Save the date and pass the word. **Please RSVP** so we know who is coming and how many to expect. Find us to say hi and we will introduce you to others. We should be easy to spot. (The happy-looking group wearing cool nametags! See photos from our past events.) Sign in, grab a name tag, start your own bar/food tab, meet old friends and make new ones! Everyone is welcome. SEE YOU THERE!

#### Turning Rentals Into Income: How Investors Pay Off Properties Faster #### **Featuring Guest Speaker: John Blackburn** ** Get your FREE TICKET [HERE](https://www.eventbrite.com/e/turning-rentals-into-income-how-investors-pay-off-properties-faster-tickets-1980492192461?aff=cicmeetupapp)** #### A lot of people get into real estate because they want freedom. Then they buy a rental…and realize most of the rent goes straight to the bank. They technically own property, but the mortgage controls the income. And waiting 30 years for properties to be paid off doesn’t feel realistic. This meetup is about understanding a different way to think about rental properties… one that focuses on paying them off sooner so the income is actually usable. **Featured Guest Speaker: John Blackburn** We’re excited to welcome John Blackburn as our guest speaker for this event. John has been actively investing in real estate since 2006 and has: * Been involved in **5,000+ real estate transactions** * Helped investors **acquire over $150 million in rental property** * **Raised more than $100 million** in private capital John didn’t start with family money or shortcuts. He built his portfolio by focusing on clear systems, real numbers, and long-term strategy. For this meetup, John will walk through how investors shift their focus from simply owning rentals to building properties that eventually pay them…without a mortgage attached. **What You’ll Learn** John will break down, in simple terms: * Why most rental properties don’t produce much usable income early on * Why buying more rentals isn’t always the answer * How investors structure their properties to pay off mortgages in a fraction of the time * How properties can work together to eliminate debt faster * What changes once rentals become free and clear This approach is often referred to as an accelerated paydown strategy — using rental income intentionally to reduce debt sooner, rather than waiting decades for mortgages to run their course. John will also share a simple calculator you can use to see how this works with real numbers and realistic scenarios. **The Core Idea** When a rental has a mortgage, the rent has one job: **pay the bank.** When a rental is paid off, the rent has a different job: **pay you.** Most people only see one timeline…30 years. This session shows how investors shorten that timeline and gradually increase their income as properties become free and clear. **Who This Event Is For** This event is for people who want more than just “owning rentals” on paper. * Rental owners who are tired of most of the rent going to the bank and want a clearer path to real, usable income * New investors who want to understand how rental properties actually build wealth over time before jumping in * People with capital who want to invest in real estate with intention and a long-term plan * Anyone serious about freedom and curious how rental properties transition from debt-heavy assets into income-producing ones **Event Details** **Location:** Ohio Brewing Company - 421 E 2nd Ave, Columbus, OH 43201 **Date & Time:** January 25th, 6–8 PM (Doors open at 5:30) **Cost:** Free (Seats are limited - RSVP required) ** Get your FREE TICKET [HERE](https://www.eventbrite.com/e/turning-rentals-into-income-how-investors-pay-off-properties-faster-tickets-1980492192461?aff=cicmeetupapp)** If you’ve ever wondered how rental properties actually turn into freedom —this is the room to be in.

Welcome, readers! Our February read is **_1984 by George Orwell._** In 1984, George Orwell imagines a world where the government watches everyone, rewrites reality, and punishes even private thoughts. Winston Smith dares to question this system, believing that truth and love might still exist. His rebellion draws him into a chilling struggle against a power that knows him better than he knows himself. The novel leaves readers asking whether freedom is possible when reality itself can be controlled. Looking forward to discussing with everyone! We will meet at Zaftig Brewing Co in their event room in the back. We are welcome to bring in our own food, but **drinks must be purchased at the bar.** Happy reading!

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads**®**, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

Come join us for coffee at Matari Coffee to discuss our March book, "The Enchanted Greenhouse"! Book description: Terlu Perna broke the law because she was lonely. She cast a spell and created a magically sentient spider plant. As punishment, she was turned into a wooden statue and tucked away into an alcove in the North Reading Room of the Great Library of Alyssium. This should have been the end of her story . . . Yet one day, Terlu wakes in the cold of winter on a nearly-deserted island full of hundreds of magical greenhouses. She’s starving and freezing, and the only other human on the island is a grumpy gardener. To her surprise, he offers Terlu a place to sleep, clean clothes, and freshly baked honey cakes—at least until she’s ready to sail home. But Terlu can’t return home and doesn’t want to—the greenhouses are a dream come true, each more wondrous than the next. When she learns that the magic that sustains them is failing—causing the death of everything within them—Terlu knows she must help. Even if that means breaking the law again. This time, though, she isn’t alone. Assisted by the gardener and a sentient rose, Terlu must unravel the secrets of a long-dead sorcerer if she wants to save the island—and have a fresh chance at happiness and love.

Let's gather for lunch at Carfagna's followed by an optional stop in Carfagna's Market to check out the tastes and smells of Italy. Carfagna's address is 1440 Gemini Pl, Columbus, OH 43240

Calling all founders, CEOs, lawyers, doctors, and entrepreneurs to join our special *Founder Edition* of Sip & Read meetup event. Let's sip on fine wine and discuss our first book **The 5AM Club- Own Your Morning Elevate Your Life, by Robin Sharma**. We will pair this book with our favorite wine at **Wine on High** and engage in thought-provoking discussions on startup businesses and entrepreneurship, and network with like-minded individuals in a cozy book club setting. Come prepared to discuss this month's book. At the end of each book club meeting, we will take next book and venue suggestions from the participants for the next meeting. Whether you are a book lover, women entrepreneur, or a content creator, this event is perfect for sharing ideas and insights with other funders and founders in the entrepreneurial world. Don't miss out on this unique opportunity to connect, learn, and grow together. Sign up now to reserve your spot! *Fun fact! This meetup was established in 2015 and had over 1,000 members. I had to shut down operations while attending law school, but we're back!!*

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/